核素列表

提示：此条目的主题不是核素表。

下表列出了所有天然同位素（包括半衰期極短的）以及902個稳定的或半衰期大於一小時的所有核素。

圖表

穩定核素

理論上自發裂變比較可能發生在原子序大於40的元素^{[來源請求]}，但尚未被觀測到，目前只有發現原子序大於82（鉛）的自發自發裂變核素。

no	核素	A	Z	N	能量	半衰期	衰變方式	衰變能量 (Mev)
1	^56Fe	56	26	30	7000915356700000000♠9.153567
2	^62Ni	62	28	34	7000914787699999999♠9.147877
3	^60Ni	60	28	32	7000914586199999999♠9.145862
4	^58Fe	58	26	32	7000914293799999999♠9.142938
5	^52Cr	52	24	28	7000913703700000000♠9.137037
6	^57Fe	57	26	31	7000912711900000000♠9.127119
7	^59Co	59	27	32	7000912604600000000♠9.126046
8	^54Cr	54	24	30	7000912563300000000♠9.125633
9	^61Ni	61	28	33	7000912412900000000♠9.124129
10	^55Mn	55	25	30	7000912061100000000♠9.120611
11	^64Ni	64	28	36	7000911975400000000♠9.119754
12	^66Zn	66	30	36	7000911525800000000♠9.115258
13	^53Cr	53	24	29	7000911443500000000♠9.114435
14	^63Cu	63	29	34	7000911227200000000♠9.112272
15	^65Cu	65	29	36	7000910615400000000♠9.106154
16	^68Zn	68	30	38	7000910084500000000♠9.100845
17	^50Ti	50	22	28	7000909986100000000♠9.099861
18	^51V	51	23	28	7000909488400000000♠9.094884
19	^67Zn	67	30	37	7000908446799999999♠9.084468
20	^48Ti	48	22	26	7000908148800000000♠9.081488
21	^72Ge	72	32	40	7000907946500000000♠9.079465
22	^70Ge	70	32	38	7000907937199999999♠9.079372
23	^69Ga	69	31	38	7000907607800000000♠9.076078
24	^88Sr	88	38	50	7000907043799999999♠9.070438
25	^74Ge	74	32	42	7000906352200000000♠9.063522
26	^49Ti	49	22	27	7000906232299999999♠9.062323
27	^76Se	76	34	42	7000906148499999999♠9.061485
28	^71Ga	71	31	40	7000905921800000000♠9.059218
29	^78Se	78	34	44	7000905884200000000♠9.058842
30	^90Zr	90	40	50	7000905763100000000♠9.057631
31	^89Y	89	39	50	7000905674300000000♠9.056743
32	^86Sr	86	38	48	7000905416000000000♠9.054160
33	^82Kr	82	36	46	7000905412600000000♠9.054126
34	^84Kr	84	36	48	7000905264900000000♠9.052649
35	^73Ge	73	32	41	7000904800600000000♠9.048006
36	^87Sr	87	38	49	7000904696399999999♠9.046964
37	^75As	75	33	42	7000904509300000000♠9.045093
38	^80Kr	80	36	44	7000904498400000000♠9.044984
39	^77Se	77	34	43	7000904015300000000♠9.040153
40	^85Rb	85	37	48	7000903799800000000♠9.037998
41	^91Zr	91	40	51	7000903715600000000♠9.037156
42	^83Kr	83	36	47	7000903496600000000♠9.034966
43	^79Br	79	35	44	7000903422000000000♠9.034220
44	^81Br	81	35	46	7000903397900000000♠9.033979
45	^92Zr	92	40	52	7000903278300000000♠9.032783
46	^46Ti	46	22	24	7000903053199999999♠9.030532
47	^47Ti	47	22	25	7000902733600000000♠9.027336
48	^44Ca	44	20	24	7000901379300000000♠9.013793
49	^42Ca	42	20	22	7000898911599999999♠8.989116
50	^38Ar	38	18	20	7000898487000000000♠8.984870
51	^45Sc	45	21	24	7000898394500000000♠8.983945
52	^43Ca	43	20	23	7000896455100000000♠8.964551
53	^34S	34	16	18	7000895167500000000♠8.951675
54	^40Ar	40	18	22	7000894732499999999♠8.947325
55	^41K	41	19	22	7000893862300000000♠8.938623
56	^39K	39	19	20	7000893817400000000♠8.938174
57	^37Cl	37	17	20	7000892976000000000♠8.929760
58	^36S	36	16	20	7000892310799999999♠8.923108
59	^35Cl	35	17	18	7000890028500000000♠8.900285
60	^30Si	30	14	16	7000888576100000000♠8.885761
61	^32S	32	16	16	7000888431800000000♠8.884318
62	^33S	33	16	17	7000887696399999999♠8.876964
63	^31P	31	15	16	7000885974399999999♠8.859744
64	^28Si	28	14	14	7000883893499999999♠8.838935
65	^29Si	29	14	15	7000882632699999999♠8.826327
66	^27Al	27	13	14	7000870824200000000♠8.708242
67	^26Mg	26	12	14	7000869498100000000♠8.694981
68	^24Mg	24	12	12	7000865191100000000♠8.651911
69	^25Mg	25	12	13	7000859904700000000♠8.599047
70	^23Na	23	11	12	7000848567500000000♠8.485675
71	^22Ne	22	10	12	7000843608700000000♠8.436087
72	^20Ne	20	10	10	7000842342200000000♠8.423422
73	^16O	16	8	8	7000836739000000000♠8.367390
74	^21Ne	21	10	11	7000834428000000000♠8.344280
75	^19F	19	9	10	7000814961200000000♠8.149612
76	^17O	17	8	9	7000811890400000000♠8.118904
77	^18O	18	8	10	7000811474400000000♠8.114744
78	^12C	12	6	6	7000807132700000000♠8.071327
79	^15N	15	7	8	7000806459400000000♠8.064594
80	^14N	14	7	7	7000786682700000000♠7.866827
81	^13C	13	6	7	7000783094300000000♠7.830943
82	^4He	4	2	2	7000746507700000000♠7.465077
83	^11B	11	5	6	7000728333700000000♠7.283337
84	^10B	10	5	5	7000686625700000000♠6.866257
85	^9Be	9	4	5	7000681048300000000♠6.810483
86	^7Li	7	3	4	7000594159900000000♠5.941599
87	^6Li	6	3	3	7000572352700000000♠5.723527
88	^3He	3	2	1	7000309432700000000♠3.094327
89	^2H	2	1	1	7000150332700000000♠1.503327
90	^1H	1	1	0	6999782327000000000♠0.782327
91	^94Mo	94	42	52	7000901185600000000♠9.011856		(SF)	< 4.485
92	^93Nb	93	41	52	7000900905100000000♠9.009051		(SF)	< 0.943
93	^96Mo	96	42	54	7000899622900000000♠8.996229		(SF)	< 5.771
94	^95Mo	95	42	53	7000899456400000000♠8.994564		(SF)	< 4.531
95	^97Mo	97	42	55	7000897380600000000♠8.973806		(SF)	< 6.226
96	^98Ru	98	44	54	7000897157200000000♠8.971572		(SF)	< 11.690
97	^100Ru	100	44	56	7000896351700000000♠8.963517		(SF)	< 13.634
98	^99Ru	99	44	55	7000895634800000000♠8.956348		(SF)	< 12.368
99	^102Ru	102	44	58	7000894483700000000♠8.944837		(SF)	< 12.049
100	^101Ru	101	44	57	7000894211700000000♠8.942117		(SF)	< 13.205
101	^104Pd	104	46	58	7000893084700000000♠8.930847		(SF)	< 18.969
102	^103Rh	103	45	58	7000892591000000000♠8.925910		(SF)	< 15.462
103	^106Pd	106	46	60	7000891946000000000♠8.919460		(SF)	< 16.806
104	^105Pd	105	46	59	7000891335600000000♠8.913356		(SF)	< 18.247
105	^108Pd	108	46	62	7000890025299999999♠8.900253		(SF)	< 16.102
106	^107Ag	107	47	60	7000889751399999999♠8.897514		(SF)	< 20.512
107	^110Cd	110	48	62	7000889271800000000♠8.892718		(SF)	< 22.486
108	^109Ag	109	47	62	7000888530000000000♠8.885300		(SF)	< 19.241
109	^112Cd	112	48	64	7000888007700000000♠8.880077		(SF)	< 20.733
110	^111Cd	111	48	63	7000887544499999999♠8.875445		(SF)	< 21.883
111	^114Sn	114	50	64	7000886572200000000♠8.865722		(SF)	< 27.965
112	^113In	113	49	64	7000886221200000000♠8.862212		(SF)	< 24.281
113	^116Sn	116	50	66	7000886036200000000♠8.860362		(SF)	< 25.905
114	^115Sn	115	50	65	7000885424899999999♠8.854249		(SF)	< 26.791
115	^118Sn	118	50	68	7000884807300000000♠8.848073		(SF)	< 23.815
116	^117Sn	117	50	67	7000884397700000000♠8.843977		(SF)	< 25.334
117	^120Sn	120	50	70	7000883053700000000♠8.830537		(SF)	< 21.824
118	^119Sn	119	50	69	7000882820100000000♠8.828201		(SF)	< 23.140
119	^121Sb	121	51	70	7000881178300000000♠8.811783		(SF)	< 25.718
120	^122Te	122	52	70	7000881160600000000♠8.811606		(SF)	< 30.974
121	^124Te	124	52	72	7000880136400000000♠8.801364		(SF)	< 28.221
122	^123Sb	123	51	72	7000879672700000000♠8.796727		(SF)	< 23.454
123	^126Te	126	52	74	7000878612600000000♠8.786126		(SF)	< 26.011
124	^125Te	125	52	73	7000878350500000000♠8.783505		(SF)	< 26.966
125	^128Xe	128	54	74	7000877335899999999♠8.773359		(SF)	< 35.047
126	^127I	127	53	74	7000877198100000000♠8.771981		(SF)	< 29.961
127	^130Xe	130	54	76	7000876272500000000♠8.762725		(SF)	< 32.483
128	^129Xe	129	54	75	7000875890399999999♠8.758904		(SF)	< 33.947
129	^132Xe	132	54	78	7000874769500000000♠8.747695		(SF)	< 30.885
130	^131Xe	131	54	77	7000874625300000000♠8.746253		(SF)	< 31.140
131	^134Ba	134	56	78	7000873513299999999♠8.735133		(SF)	< 40.520
132	^133Cs	133	55	78	7000873351500000000♠8.733515		(SF)	< 34.753
133	^136Ba	136	56	80	7000872490799999999♠8.724908		(SF)	< 38.041
134	^135Ba	135	56	79	7000872207200000000♠8.722072		(SF)	< 39.357
135	^137Ba	137	56	81	7000871162799999999♠8.711628		(SF)	< 35.722
136	^138Ba	138	56	82	7000871090399999999♠8.710904		(SF)	< 34.302
137	^140Ce	140	58	82	7000870049400000000♠8.700494		(SF)	< 43.633
138	^139La	139	57	82	7000869889200000000♠8.698892		(SF)	< 38.944
139	^141Pr	141	59	82	7000868140500000000♠8.681405		(SF)	< 48.450
140	^142Nd	142	60	82	7000867664600000000♠8.676646		(SF)	< 53.264
141	^156Gd	156	64	92	7000853634200000000♠8.536342		(SF)	< 71.541
142	^157Gd	157	64	93	7000852247800000000♠8.522478		(SF)	< 70.531
143	^158Gd	158	64	94	7000851877500000000♠8.518775		(SF)	< 70.965
144	^159Tb	159	65	94	7000850868000000000♠8.508680		(SF)	< 74.878
145	^163Dy	163	66	97	7000847860700000000♠8.478607		(SF)	< 79.055
146	^164Dy	164	66	98	7000847360400000000♠8.473604		(SF)	< 79.499
147	^54Fe	54	26	28	7000911304000000000♠9.113040		(β^+β^+)	0.6800
148	^58Ni	58	28	30	7000910973600000000♠9.109736		(β^+β^+)	1.9258
149	^74Se	74	34	40	7000904717499999999♠9.047175		(β^+β^+)	1.2094
150	^80Se	80	34	46	7000904332600000000♠9.043326		(β^−β^−)	0.1339
151	^86Kr	86	36	50	7000903953200000000♠9.039532		(β^−β^−)	1.2556
152	^84Sr	84	38	46	7000903137500000000♠9.031375		(β^+β^+)	1.7867
153	^92Mo	92	42	50	7000901486000000000♠9.014860		(β^+β^+)	1.6491
154	^94Zr	94	40	54	7000899969800000000♠8.999698		(β^−β^−)	1.1440
155	^98Mo	98	42	56	7000897042600000000♠8.970426		(β^−β^−)	0.1125
156	^96Ru	96	44	52	7000896791100000000♠8.967911		(β^+β^+)	2.7188
157	^102Pd	102	46	56	7000893333700000000♠8.933337		(β^+β^+)	1.1720
158	^104Ru	104	44	60	7000891833699999999♠8.918337		(β^−β^−)	1.2997
159	^36Ar	36	18	18	7000891110499999999♠8.911105		(β^+β^+)	0.4335
160	^110Pd	110	46	64	7000887450000000000♠8.874500		(β^−β^−)	1.9997
161	^112Sn	112	50	62	7000886294400000000♠8.862944		(β^+β^+)	1.9222
162	^122Sn	122	50	72	7000880859000000000♠8.808590		(β^−β^−)	0.3661
163	^124Sn	124	50	74	7000878291400000000♠8.782914		(β^−β^−)	2.2870
164	^126Xe	126	54	72	7000877901000000000♠8.779010		(β^+β^+)	0.8973
165	^143Nd	143	60	83	7000865879200000000♠8.658792		(α)	0.5214
166	^144Sm	144	62	82	7000864057700000000♠8.640577		(β^+β^+, α)	1.7811, 0.0761
167	^145Nd	145	60	85	7000863296300000000♠8.632963		(α)	1.5784
168	^146Nd	146	60	86	7000862564899999999♠8.625649		(β^−β^−, α)	0.0702, 1.1822
169	^148Nd	148	60	88	7000859438800000000♠8.594388		(β^−β^−, α)	1.9288, 0.5986
170	^150Sm	150	62	88	7000858504300000000♠8.585043		(α)	1.4495
171	^152Sm	152	62	90	7000856322700000000♠8.563227		(α)	0.2203
172	^153Eu	153	63	90	7000855089300000000♠8.550893		(α)	0.2736
173	^154Gd	154	64	90	7000854998500000000♠8.549985		(α)	0.0812
174	^154Sm	154	62	92	7000854185700000000♠8.541857		(β^−β^−)	1.2510
175	^155Gd	155	64	91	7000853634100000000♠8.536341		(α)	0.0812
176	^156Dy	156	66	90	7000852344300000000♠8.523443		(β^+β^+, α)	2.0108, 1.7579
177	^158Dy	158	66	92	7000851697300000000♠8.516973		(β^+β^+, α)	0.2833, 0.8748
178	^160Dy	160	66	94	7000850681600000000♠8.506816		(α)	0.4387
179	^161Dy	161	66	95	7000849406699999999♠8.494067		(α)	0.3443
180	^162Dy	162	66	96	7000849223400000000♠8.492234		(α)	0.0847
181	^162Er	162	68	94	7000848085200000000♠8.480852		(β^+β^+, α)	1.8445, 1.6460
182	^164Er	164	68	96	7000847346200000000♠8.473462		(β^+β^+, α)	0.0241, 1.3041
183	^165Ho	165	67	98	7000846468900000000♠8.464689		(α)	0.1394
184	^166Er	166	68	98	7000846248200000000♠8.462482		(α)	0.8309
185	^167Er	167	68	99	7000845035000000000♠8.450350		(α)	0.6657
186	^168Er	168	68	100	7000844630800000000♠8.446308		(α)	0.5527
187	^168Yb	168	70	98	7000843784499999999♠8.437845		(β^+β^+, α)	1.4221, 1.9508
188	^169Tm	169	69	100	7000843393100000000♠8.433931		(α)	1.2004
189	^170Yb	170	70	100	7000842879200000000♠8.428792		(α)	1.7376
190	^170Er	170	68	102	7000842494499999999♠8.424945		(β^−β^−, α)	0.6536, 0.0502
191	^171Yb	171	70	101	7000841818200000000♠8.418182		(α)	1.5589
192	^172Yb	172	70	102	7000841586399999999♠8.415864		(α)	1.3103
193	^173Yb	173	70	103	7000840402300000000♠8.404023		(α)	0.9459
194	^174Yb	174	70	104	7000839862400000000♠8.398624		(α)	0.7401
195	^175Lu	175	71	104	7000838658900000000♠8.386589		(α)	1.6197
196	^176Hf	176	72	104	7000838142700000000♠8.381427		(α)	2.2550
197	^177Hf	177	72	105	7000837013900000000♠8.370139		(α)	2.2449
198	^178Hf	178	72	106	7000836595799999999♠8.365958		(α)	2.0832
199	^179Hf	179	72	107	7000835329300000000♠8.353293		(α)	1.8065
200	^180Hf	180	72	108	7000834793000000000♠8.347930		(α)	1.2828
201	^181Ta	181	73	108	7000833896100000000♠8.338961		(α)	1.5259
202	^185Re	185	75	110	7000830820400000000♠8.308204		(α)	2.1947
203	^187Os	187	76	111	7000829174600000000♠8.291746		(α)	2.7202
204	^188Os	188	76	112	7000829013800000000♠8.290138		(α)	2.1426
205	^189Os	189	76	113	7000827759900000000♠8.277599		(α)	1.9757
206	^190Os	190	76	114	7000827504500000000♠8.275045		(α)	1.3784
207	^191Ir	191	77	114	7000826350800000000♠8.263508		(α)	2.0839
208	^192Pt	192	78	114	7000826035300000000♠8.260353		(α)	2.4181
209	^192Os	192	76	116	7000825820200000000♠8.258202		(β^−β^−, α)	0.4135, 0.3622
210	^194Pt	194	78	116	7000825051900000000♠8.250519		(α)	1.5045
211	^193Ir	193	77	116	7000825025900000000♠8.250259		(α)	1.0173
212	^195Pt	195	78	117	7000823951600000000♠8.239516		(α)	1.1581
213	^196Pt	196	78	118	7000823789599999999♠8.237896		(α)	0.7942
214	^196Hg	196	80	116	7000823371000000000♠8.233710		(β^+β^+, α)	0.8197, 2.0273
215	^197Au	197	79	118	7000822940400000000♠8.229404		(α)	0.9545
216	^198Hg	198	80	118	7000822766300000000♠8.227663		(α)	1.3833
217	^198Pt	198	78	120	7000822237800000000♠8.222378		(β^−β^−, α)	1.0472, 0.0870
218	^199Hg	199	80	119	7000821980499999999♠8.219805		(α)	0.8242
219	^200Hg	200	80	120	7000821884800000000♠8.218848		(α)	0.7178
220	^201Hg	201	80	121	7000820895600000000♠8.208956		(α)	0.3341
221	^202Hg	202	80	122	7000820670299999999♠8.206703		(α)	0.1363
222	^203Tl	203	81	122	7000819823000000000♠8.198230		(α)	0.9108
223	^204Hg	204	80	124	7000819235800000000♠8.192358		(β^−β^−)	0.4163
224	^205Tl	205	81	124	7000818752600000000♠8.187526		(α)	0.1567
225	^206Pb	206	82	124	7000818679100000000♠8.186791		(α)	1.1366
226	^207Pb	207	82	125	7000817979100000000♠8.179791		(α)	0.3915
227	^208Pb	208	82	126	7000817588800000000♠8.175888		(α)	0.5188

下面的穩定核素是已觀測到放射性的不穩定核素候選：

no 核素 A Z N 能量 半衰期（秒） 衰變方式 衰變能量 (MeV) 228 ^134Xe 134 54 80 7000872897300000000♠8.728973 > 7030183000000000000♠1.830×10^30 β^−β^− 0.825 229 ^40Ca 40 20 20 7000894248500000000♠8.942485 > 7028946700000000000♠9.467×10^28 β^+β^+ 0.194 230 ^132Ba 132 56 76 7000874128800000000♠8.741288 > 7028946700000000000♠9.467×10^28 β^+β^+ 0.846 231 ^78Kr 78 36 42 7000902234900000000♠9.022349 > 7027725800000000000♠7.258×10^27 β^+β^+ 2.846 232 ^160Gd 160 64 96 7000849600900000000♠8.496009 > 7026978300000000000♠9.783×10^26 β^−β^− 1.729 233 ^184W 184 74 110 7000831973700000000♠8.319737 > 7026915199999999999♠9.152×10^26 α 1.656 234 ^186W 186 74 112 7000829987300000000♠8.299873 > 7026852100000000000♠8.521×10^26 α 1.123 235 ^183W 183 74 109 7000832469900000000♠8.324699 > 7026410200000000000♠4.102×10^26 α 1.680 236 ^182W 182 74 108 7000833642399999999♠8.336424 > 7026261900000000000♠2.619×10^26 α 1.772 237 ^114Cd 114 48 66 7000886098500000000♠8.860985 > 7026202000000000000♠2.020×10^26 β^−β^− 0.540 238 ^50Cr 50 24 26 7000907651700000000♠9.076517 > 7025410200000000000♠4.102×10^25 β^+β^+ 1.167 239 ^108Cd 108 48 60 7000889773500000000♠8.897735 > 7025315600000000000♠3.156×10^25 β^+β^+ 0.272 240 ^142Ce 142 58 84 7000866666599999999♠8.666666 > 7024820500000000000♠8.205×10^24 β^−β^−, (α) 1.417, 1.298 241 ^106Cd 106 48 58 7000889332699999999♠8.893327 > 7024820500000000000♠8.205×10^24 β^+β^+ 2.770 242 ^176Yb 176 70 106 7000837527100000000♠8.375271 > 7024504900000000000♠5.049×10^24 β^−β^−, (α) 1.083, 0.570 243 ^204Pb 204 82 122 7000819441400000000♠8.194414 > 7024441800000000000♠4.418×10^24 α 1.972 244 ^124Xe 124 54 70 7000877826400000000♠8.778264 > 7024347100000000000♠3.471×10^24 β^+β^+ 2.864 245 ^123Te 123 52 71 7000879630200000000♠8.796302 > 7024290300000000000♠2.903×10^24 β^+ 0.052 246 ^64Zn 64 30 34 7000910263400000000♠9.102634 > 7023883600000000000♠8.836×10^23 (β^+β^+) 1.096 247 ^120Te 120 52 68 7000881636900000000♠8.816369 > 7023694299999999999♠6.943×10^23 β^+β^+ 1.700 248 ^70Zn 70 30 40 7000906510900000000♠9.065109 > 7023410200000000000♠4.102×10^23 β^−β^− 0.998 249 ^46Ca 46 20 26 7000900904700000000♠9.009047 > 7022883600000000000♠8.836×10^22 β^−β^− 0.988 250 ^149Sm 149 62 87 7000858905800000000♠8.589058 > 7022631200000000000♠6.312×10^22 α 1.870 251 ^180mTa 180 73 107 7000834276700000000♠8.342767 > 7022378700000000000♠3.787×10^22 (β^−, K, α) 0.783, 0.929, 2.103 252 ^138Ce 138 58 80 7000870587800000000♠8.705878 > 7021284000000000000♠2.840×10^21 β^+β^+ 0.694 253 ^136Ce 136 58 78 7000870712200000000♠8.707122 > 7021220900000000000♠2.209×10^21 β^+β^+ 2.419 254 ^184Os 184 76 108 7000831185000000000♠8.311850 > 7021176700000000000♠1.767×10^21 α, (β^+β^+) 2.963, 1.451

原生放射性核素

no 核素 能量 半衰期（秒） 衰變方式 衰變能量（MeV） 半衰期（年） 255 ^128Te 7000874326100000000♠8.743261 7031694000000000000♠6.94×10^31 β^−β^− 2.530 7024220000000000000♠2.2×10^24 256 ^136Xe 7000870680499999999♠8.706805 7028750000000000000♠7.5×10^28 β^−β^− 2.462 7021238000000000000♠2.38×10^21 257 ^76Ge 7000903465600000000♠9.034656 7028564230000000000♠5.6423×10^28 β^−β^− 2.039 7021180000000000000♠1.8×10^21 258 ^130Ba 7000874257400000000♠8.742574 7028379000000000000♠3.79×10^28 KK 2.620 7021120000000000000♠1.2×10^21 259 ^82Se 7000901759599999999♠9.017596 7027340800000000000♠3.408×10^27 β^−β^− 2.995 7020110000000000000♠1.1×10^20 260 ^116Cd 7000883614600000000♠8.836146 7026978300000000000♠9.783×10^26 β^−β^− 2.809 7019310200000000000♠3.102×10^19 261 ^48Ca 7000899245200000000♠8.992452 7026725800000000000♠7.258×10^26 β^−β^−, β^− 4.274, 0.0058 7019230100000000000♠2.301×10^19 262 ^96Zr 7000896135900000000♠8.961359 7026630000000000000♠6.3×10^26 β^−β^− 3.348 7019200000000000000♠2.0×10^19 263 ^209Bi 7000815868900000000♠8.158689 7026599600000000000♠5.996×10^26 α 3.137 7019190000000000000♠1.9×10^19 264 ^130Te 7000876657800000000♠8.766578 7026277700000000000♠2.777×10^26 β^−β^− 0.868 7018880600000000000♠8.806×10^18 265 ^150Nd 7000856259400000000♠8.562594 7026249299999999999♠2.493×10^26 β^−β^− 3.367 7018790500000000000♠7.905×10^18 266 ^100Mo 7000893316699999999♠8.933167 7026246099999999999♠2.461×10^26 β^−β^− 3.035 7018780400000000000♠7.804×10^18 267 ^151Eu 7000856575900000000♠8.565759 7026157800000000000♠1.578×10^26 α 1.9644 7018500400000000000♠5.004×10^18 268 ^180W 7000834712700000000♠8.347127 7025568000000000000♠5.680×10^25 α 2.509 7018180100000000000♠1.801×10^18 269 ^50V 7000905575900000000♠9.055759 7024441800000000000♠4.418×10^24 β^+, β^− 2.205, 1.038 7017139999999999999♠1.4×10^17 270 ^113Cd 7000885937200000000♠8.859372 7023243000000000000♠2.430×10^23 β^− 0.321 7015770000000000000♠7.7×10^15 271 ^148Sm 7000860742300000000♠8.607423 7023220900000000000♠2.209×10^23 α 1.986 7015700500000000000♠7.005×10^15 272 ^144Nd 7000865294699999999♠8.652947 7022722700000000000♠7.227×10^22 α 1.905 7015229200000000000♠2.292×10^15 273 ^186Os 7000830250800000000♠8.302508 7022631200000000000♠6.312×10^22 α 2.823 7015200200000000000♠2.002×10^15 274 ^174Hf 7000839228700000000♠8.392287 7022631200000000000♠6.312×10^22 α 2.497 7015200200000000000♠2.002×10^15 275 ^115In 7000884991000000000♠8.849910 7022139200000000000♠1.392×10^22 β^− 0.499 7014440000000000000♠4.4×10^14 276 ^152Gd 7000856286800000000♠8.562868 7021340800000000000♠3.408×10^21 α 2.203 7014110000000000000♠1.1×10^14 277 ^190Pt 7000826776400000000♠8.267764 7019205100000000000♠2.051×10^19 α 3.252 7011650000000000000♠6.5×10^11 278 ^147Sm 7000861059300000000♠8.610593 7018334500000000000♠3.345×10^18 α 2.310 7011106100000000000♠1.061×10^11 279 ^138La 7000869832000000000♠8.698320 7018321900000000000♠3.219×10^18 K, β^− 1.737, 1.044 7011102099999999999♠1.021×10^11 280 ^87Rb 7000904371800000000♠9.043718 7018156800000000000♠1.568×10^18 β^− 0.283 7010497200000000000♠4.972×10^10 281 ^187Re 7000829173200000000♠8.291732 7018130000000000000♠1.300×10^18 β^−, α 0.0026, 1.653 7010412200000000000♠4.122×10^10 282 ^176Lu 7000837466500000000♠8.374665 7018118700000000000♠1.187×10^18 β^− 1.193 7010376400000000000♠3.764×10^10 283 ^232Th 7000791853300000000♠7.918533 7017443400000000000♠4.434×10^17 α, SF 4.083 7010140600000000000♠1.406×10^10 284 ^238U 7000787255100000000♠7.872551 7017141000000000000♠1.410×10^17 α, SF 4.270 7009447100000000000♠4.471×10^9 285 ^40K 7000890970699999999♠8.909707 7016393800000000000♠3.938×10^16 β^−, K, β^+ 1.311, 1.505, 1.505 7009125000000000000♠1.25×10^9 286 ^235U 7000789719800000000♠7.897198 7016222200000000000♠2.222×10^16 α, SF 4.679 7008704000000000000♠704×10^6 287 ^146Sm 7000862613600000000♠8.626136 7015325000000000000♠3.250×10^15 α 2.529 7008103000000000000♠103×10^6 288 ^244Pu 7000782622100000000♠7.826221 7015252500000000000♠2.525×10^15 α, SF 4.666 7007800000000000000♠80×10^6

非原生放射性核素

半衰期低於8千萬年的核素。

no	核素	能量	半衰期（秒）	衰變方式	半衰期（年或日）
289	^92Nb	7000901098000000000♠9.010980	7015109500000000000♠1.095×10^15	K, β^−	7007347000000000000♠3.470×10^7 y
290	^236U	7000789147000000000♠7.891470	7014739100000000000♠7.391×10^14	α, SF	7007234200000000000♠2.342×10^7 y
291	^205Pb	7000818727900000000♠8.187279	7014545899999999999♠5.459×10^14	β^+	7007173000000000000♠1.730×10^7 y
292	^129I	7000875739699999999♠8.757397	7014495500000000000♠4.955×10^14	β^−	7007157000000000000♠1.570×10^7 y
293	^247Cm	7000780600800000000♠7.806008	7014492300000000000♠4.923×10^14	α	7007156000000000000♠1.560×10^7 y
294	^182Hf	7000832439900000000♠8.324399	7014280900000000000♠2.809×10^14	β^−	7006890100000000000♠8.901×10^6 y
295	^107Pd	7000889719700000000♠8.897197	7014205100000000000♠2.051×10^14	β^−	7006649900000000000♠6.499×10^6 y
296	^98Tc	7000895324600000000♠8.953246	7014132500000000000♠1.325×10^14	β^−	7006419900000000000♠4.199×10^6 y
297	^53Mn	7000910317500000000♠9.103175	7014118000000000000♠1.180×10^14	β^+	7006373900000000000♠3.739×10^6 y
298	^210mBi	7000814047300000000♠8.140473	7013959400000000000♠9.594×10^13	α	7006257961500000000♠2.579615×10^6 y
299	^154Dy	7000852845700000000♠8.528457	7013946700000000000♠9.467×10^13	α	7006300000000000000♠3.000×10^6 y
300	^60Fe	7000909486100000000♠9.094861	7013826800000000000♠8.268×10^13	β^−	7006262000000000000♠2.620×10^6 y
301	^97Tc	7000897050300000000♠8.970503	7013820300000000000♠8.203×10^13	β^+	7006260000000000000♠2.600×10^6 y
302	^135Cs	7000872008200000000♠8.720082	7013725800000000000♠7.258×10^13	β^−	7006230000000000000♠2.300×10^6 y
303	^237Np	7000788198900000000♠7.881989	7013676600000000000♠6.766×10^13	α, SF	7006214400000000000♠2.144×10^6 y
304	^150Gd	7000857645400000000♠8.576454	7013564900000000000♠5.649×10^13	α	7006179000000000000♠1.790×10^6 y
305	^93Zr	7000900806900000000♠9.008069	7013482800000000000♠4.828×10^13	β^−	7006153000000000000♠1.530×10^6 y
306	^10Be	7000681065700000000♠6.810657	7013476500000000000♠4.765×10^13	β^−	7006151000000000000♠1.510×10^6 y
307	^26Al	7000854095399999999♠8.540954	7013226300000000000♠2.263×10^13	β^+	7005717100000000000♠7.171×10^5 y
308	^242Pu	7000784521800000000♠7.845218	7013118300000000000♠1.183×10^13	α, SF	7005374900000000000♠3.749×10^5 y
309	^208Bi	7000816204900000000♠8.162049	7013116100000000000♠1.161×10^13	β^+	7005367900000000000♠3.679×10^5 y
310	^248Cm	7000779958600000000♠7.799586	7013109800000000000♠1.098×10^13	α, SF	7005347900000000000♠3.479×10^5 y
311	^36Cl	7000889138000000000♠8.891380	7012949900000000000♠9.499×10^12	β^−, β^+	7005301000000000000♠3.010×10^5 y
312	^79Se	7000903231000000000♠9.032310	7012930900000000000♠9.309×10^12	β^−	7005295000000000000♠2.950×10^5 y
313	^234U	7000790830800000000♠7.908308	7012774700000000000♠7.747×10^12	α, SF	7005245500000000000♠2.455×10^5 y
314	^126Sn	7000875402600000000♠8.754026	7012725800000000000♠7.258×10^12	β^−	7005223000000000000♠2.230×10^5 y
315	^81Kr	7000903051299999999♠9.030513	7012722700000000000♠7.227×10^12	β^+	7005229000000000000♠2.290×10^5 y
316	^99Tc	7000895337900000000♠8.953379	7012666200000000000♠6.662×10^12	β^−	7005211100000000000♠2.111×10^5 y
317	^186mRe	7000829595800000000♠8.295958	7012631200000000000♠6.312×10^12	I	7005200000000000000♠2.000×10^5 y
318	^233U	7000791287300000000♠7.912873	7012502400000000000♠5.024×10^12	α, SF	7005159200000000000♠1.592×10^5 y
319	^236Np	7000788751400000000♠7.887514	7012486000000000000♠4.860×10^12	β^+, β^−, α	7005154000000000000♠1.540×10^5 y
320	^41Ca	7000892834700000000♠8.928347	7012321900000000000♠3.219×10^12	β^+	7005102000000000000♠1.020×10^5 y
321	^59Ni	7000910786300000000♠9.107863	7012239800000000000♠2.398×10^12	β^+	7004759900000000000♠7.599×10^4 y
322	^230Th	7000793713600000000♠7.937136	7012237900000000000♠2.379×10^12	α, SF	7004753900000000000♠7.539×10^4 y
323	^137La	7000870710100000000♠8.707101	7012189300000000000♠1.893×10^12	β^+	7004599900000000000♠5.999×10^4 y
324	^202Pb	7000819971400000000♠8.199714	7012165700000000000♠1.657×10^12	β^+, α	7004525100000000000♠5.251×10^4 y
325	^231Pa	7000792662700000000♠7.926627	7012103400000000000♠1.034×10^12	α, SF	7004327700000000000♠3.277×10^4 y
326	^239Pu	7000786802200000000♠7.868022	7011760900000000000♠7.609×10^11	α, SF	7004241100000000000♠2.411×10^4 y
327	^94Nb	7000899009900000000♠8.990099	7011640600000000000♠6.406×10^11	β^−	7004202999999999999♠2.030×10^4 y
328	^245Cm	7000782232900000000♠7.822329	7011268200000000000♠2.682×10^11	α, SF	8499 y
329	^250Cm	7000777937100000000♠7.779371	7011261900000000000♠2.619×10^11	SF, α, β^−	8299 y
330	^243Am	7000783603500000000♠7.836035	7011232600000000000♠2.326×10^11	α, SF	7371 y
331	^229Th	7000794212700000000♠7.942127	7011231599999999999♠2.316×10^11	α	7339 y
332	^240Pu	7000786246500000000♠7.862465	7011206999999999999♠2.070×10^11	α, SF	6560 y
333	^14C	7000785562000000000♠7.855620	7011179900000000000♠1.799×10^11^[1]	β^−	5701 y^[1]
334	^246Cm	7000781678100000000♠7.816781	7011150200000000000♠1.502×10^11	α, SF	4760 y
335	^163Ho	7000847859100000000♠8.478591	7011144200000000000♠1.442×10^11	β^+	4570 y
336	^93Mo	7000900469300000000♠9.004693	7011126200000000000♠1.262×10^11	β^+	3999 y
337	^226Ra	7000796659700000000♠7.966597	7010504900000000000♠5.049×10^10	α	1600 y
338	^247Bk	7000780618200000000♠7.806182	7010435500000000000♠4.355×10^10	α	1380 y
339	^166mHo	7000845127300000000♠8.451273	7010378700000000000♠3.787×10^10	β^−	1200 y
340	^251Cf	7000777596900000000♠7.775969	7010283400000000000♠2.834×10^10	α, SF	898 y
341	^91Nb	7000902332700000000♠9.023327	7010214600000000000♠2.146×10^10	β^+	680 y
342	^194Hg	7000823727100000000♠8.237271	7010140100000000000♠1.401×10^10	β^+	444 y
343	^108mAg	7000888143900000000♠8.881439	7010138199999999999♠1.382×10^10	β^+, I	437.9 y
344	^241Am	7000785167600000000♠7.851676	7010136400000000000♠1.364×10^10	α, SF	432.2 y
345	^249Cf	7000779130500000000♠7.791305	7010110800000000000♠1.108×10^10	α, SF	351.1 y
346	^39Ar	7000892368600000000♠8.923686	7009848900000000000♠8.489×10^9	β^−	269 y
347	^192mIr	7000825187500000000♠8.251875	7009760500000000000♠7.605×10^9	I	241 y
348	^158Tb	7000851105500000000♠8.511055	7009568000000000000♠5.680×10^9	β^+, β^−	180 y
349	^242mAm	7000784191300000000♠7.841913	7009445000000000000♠4.450×10^9	I, α, SF	141 y
350	^32Si	7000882385599999999♠8.823856	7009416600000000000♠4.166×10^9	β^−	132 y
351	^209Po	7000814963300000000♠8.149633	7009395100000000000♠3.951×10^9	α, β^+	125.2 y^[2]
352	^63Ni	7000911121000000000♠9.111210	7009315900000000000♠3.159×10^9	β^-	100.1 y
353	^151Sm	7000856525100000000♠8.565251	7009284000000000000♠2.840×10^9	β^-	90.0 y
354	^238Pu	7000787735800000000♠7.877358	7009276800000000000♠2.768×10^9	α, SF	87.71 y
355	^157Tb	7000852209600000000♠8.522096	7009224100000000000♠2.241×10^9	β^+	71.02 y
356	^148Gd	7000858670600000000♠8.586706	7009223700000000000♠2.237×10^9	α	70.89 y
357	^232U	7000792214300000000♠7.922143	7009217400000000000♠2.174×10^9	α, SF	68.89 y
358	^44Ti	7000892470200000000♠8.924702	7009189300000000000♠1.893×10^9	β^+	59.99 y
359	^193Pt	7000824996500000000♠8.249965	7009157800000000000♠1.578×10^9	β^+	50.0 y
360	^121mSn	7000880849900000000♠8.808499	7009138500000000000♠1.385×10^9	I, β^-	43.89 y
361	^150Eu	7000856997400000000♠8.569974	7009116400000000000♠1.164×10^9	β^+	36.89 y
362	^207Bi	7000816820899999999♠8.168209	7009103800000000000♠1.038×10^9	β^+	32.89 y
363	^42Ar	7000889092300000000♠8.890923	7009103800000000000♠1.038×10^9	β^-	32.89 y
364	^137Cs	7000870304700000000♠8.703047	7008947700000000000♠9.477×10^8	β^-	30.03 y
365	^243Cm	7000783600400000000♠7.836004	7008918300000000000♠9.183×10^8	α, β^+, SF	29.1 y
366	^90Sr	7000902623900000000♠9.026239	7008911999999999999♠9.120×10^8	β^-	28.9 y
367	^210Pb	7000814146200000000♠8.141462	7008700600000000000♠7.006×10^8	β^-, α	22.2 y
368	^227Ac	7000795744700000000♠7.957447	7008687100000000000♠6.871×10^8	β^-, α	21.77 y
369	^244Cm	7000783176300000000♠7.831763	7008571200000000000♠5.712×10^8	α, SF	18.1 y
370	^145Pm	7000863183800000000♠8.631838	7008558600000000000♠5.586×10^8	β^+, α	17.7 y
371	^241Pu	7000785159000000000♠7.851590	7008451000000000000♠4.510×10^8	β^-, α, SF	14.29 y
372	^152Eu	7000855089700000000♠8.550897	7008426199999999999♠4.262×10^8	β^+, β^-	13.51 y
373	^250Cf	7000778664000000000♠7.786640	7008412800000000000♠4.128×10^8	α, SF	13.08 y
374	^3H	7000308799400000000♠3.087994	7008388800000000000♠3.888×10^8	β^-	12.32 y
375	^85Kr	7000902991900000000♠9.029919	7008338400000000000♠3.384×10^8	β^-	10.72 y
376	^133Ba	7000872962400000000♠8.729624	7008331900000000000♠3.319×10^8	β^+	10.52 y
377	^248Bk	7000779681100000000♠7.796811	> 7008284000000000000♠2.840×10^8	α	9.00 y
378	^154Eu	7000853720000000000♠8.537200	7008271100000000000♠2.711×10^8	β^-, β^+	8.591 y
379	^194Os	7000823850800000000♠8.238508	7008189300000000000♠1.893×10^8	β^-	5.999 y
380	^228Ra	7000794439000000000♠7.944390	7008181500000000000♠1.815×10^8	β^-	5.752 y
381	^146Pm	7000861557400000000♠8.615574	7008174500000000000♠1.745×10^8	β^+, β^-	5.53 y
382	^60Co	7000909881100000000♠9.098811	7008166300000000000♠1.663×10^8	β^-	5.27 y
383	^155Eu	7000853471100000000♠8.534711	7008150000000000000♠1.500×10^8	β^-	4.753 y
384	^204Tl	7000819067100000000♠8.190671	7008119300000000000♠1.193×10^8	β^-, β^+	3.781 y
385	^174Lu	7000839072600000000♠8.390726	7008104500000000000♠1.045×10^8	β^+	3.312 y
386	^101Rh	7000893675300000000♠8.936753	7008104099999999999♠1.041×10^8	β^+	3.299 y
387	^102mRh	7000892068000000000♠8.920680	7007915199999999999♠9.152×10^7	β^+, I	2.9 y
388	^208Po	7000815531500000000♠8.155315	7007914500000000000♠9.145×10^7	α, β^+	2.898 y
389	^236Pu	7000788953600000000♠7.889536	7007901900000000000♠9.019×10^7	α, SF	2.858 y
390	^125Sb	7000877736700000000♠8.777367	7007870500000000000♠8.705×10^7	β^-	2.759 y
391	^55Fe	7000911640700000000♠9.116407	7007863700000000000♠8.637×10^7	β^+	2.737 y
392	^252Cf	7000776960500000000♠7.769605	7007834700000000000♠8.347×10^7	α, SF	2.645 y
393	^147Pm	7000860906800000000♠8.609068	7007827900000000000♠8.279×10^7	β^-	2.624 y
394	^22Na	7000830689100000000♠8.306891	7007821299999999999♠8.213×10^7	β^+	2.603 y
395	^134Cs	7000871976800000000♠8.719768	7007651700000000000♠6.517×10^7	β^-, β^+	2.065 y
396	^171Tm	7000841762000000000♠8.417620	7007605900000000000♠6.059×10^7	β^-	1.92 y
397	^228Th	7000795390600000000♠7.953906	7007603300000000000♠6.033×10^7	α	1.912 y
398	^172Hf	7000839925200000000♠8.399252	7007590100000000000♠5.901×10^7	β^+	1.87 y
399	^179Ta	7000835270300000000♠8.352703	7007574300000000000♠5.743×10^7	β^+	1.82 y
400	^173Lu	7000840014700000000♠8.400147	7007432300000000000♠4.323×10^7	β^+	1.37 y
401	^252Es	7000776462100000000♠7.764621	7007407500000000000♠4.075×10^7	α, β^+, β^-	1.291 y
402	^109Cd	7000888332700000000♠8.883327	7007398600000000000♠3.986×10^7	β^+	1.263 y
403	^235Np	7000789666900000000♠7.896669	7007342200000000000♠3.422×10^7	β^+, α	1.084 y
404	^106Ru	7000888568600000000♠8.885686	7007322800000000000♠3.228×10^7	β^-	1.023 y
405	^144Pm	7000863675100000000♠8.636751	7007313600000000000♠3.136×10^7	β^+	363 d
406	^145Sm	7000862759000000000♠8.627590	7007293800000000000♠2.938×10^7	β^+	340 d
407	^248Cf	7000780019800000000♠7.800198	7007288099999999999♠2.881×10^7	α, SF	333.4 d
408	^249Bk	7000779080500000000♠7.790805	7007285100000000000♠2.851×10^7	β^−, α, SF	330 d
409	^49V	7000905003999999999♠9.050040	7007284300000000000♠2.843×10^7	β^+	329.1 d
410	^54Mn	7000910013099999999♠9.100131	7007269700000000000♠2.697×10^7	β^+, β^−	312.2 d
411	^144Ce	7000862991800000000♠8.629918	7007246200000000000♠2.462×10^7	β^−	285 d
412	^254Es	7000774852400000000♠7.748524	7007238200000000000♠2.382×10^7	α, β^−, SF, β^+	275.7 d
413	^57Co	7000911245400000000♠9.112454	7007234800000000000♠2.348×10^7	β^+	271.8 d
414	^68Ge	7000905632700000000♠9.056327	7007234100000000000♠2.341×10^7	β^+	271 d
415	^143Pm	7000865150900000000♠8.651509	7007229000000000000♠2.290×10^7	β^+	265 d
416	^110mAg	7000886535499999999♠8.865355	7007215800000000000♠2.158×10^7	β^−, I	249.8 d
417	^65Zn	7000908535200000000♠9.085352	7007210500000000000♠2.105×10^7	β^+	243.6 d
418	^153Gd	7000854773100000000♠8.547731	7007207700000000000♠2.077×10^7	β^+	240.4 d
419	^195Au	7000823835300000000♠8.238353	7007160800000000000♠1.608×10^7	β^+	186.1 d
420	^194mIr	7000823802500000000♠8.238025	7007147700000000000♠1.477×10^7	β^−	170.9 d
421	^184mRe	7000831067000000000♠8.310670	7007146000000000000♠1.460×10^7	I, β^+	169 d
422	^242Cm	7000784486000000000♠7.844860	7007140700000000000♠1.407×10^7	α, SF	162.8 d
423	^45Ca	7000897826100000000♠8.978261	7007140500000000000♠1.405×10^7	β^−	162.6 d
424	^177mLu	7000836182900000000♠8.361829	7007138599999999999♠1.386×10^7	β^−, I	160.4 d
425	^121mTe	7000880074900000000♠8.800749	7007133100000000000♠1.331×10^7	I, β^+	154.1 d
426	^159Dy	7000850637800000000♠8.506378	7007124800000000000♠1.248×10^7	β^+	144.4 d
427	^210Po	7000814729500000000♠8.147295	7007119600000000000♠1.196×10^7	α	138.4 d
428	^139Ce	7000869688100000000♠8.696881	7007118900000000000♠1.189×10^7	β^+	137.6 d
429	^123Sn	7000878531100000000♠8.785311	7007111600000000000♠1.116×10^7	β^−	129.2 d
430	^170Tm	7000842309599999999♠8.423096	7007111100000000000♠1.111×10^7	β^−, β^+	128.6 d
431	^151Gd	7000856268500000000♠8.562685	7007107100000000000♠1.071×10^7	β^+, α	124 d
432	^181W	7000833792399999999♠8.337924	7007104700000000000♠1.047×10^7	β^+	121.2 d
433	^75Se	7000903358100000000♠9.033581	7007103500000000000♠1.035×10^7	β^+	119.8 d
434	^113Sn	7000885303500000000♠8.853035	7006994400000000000♠9.944×10^6	β^+	115.1 d
435	^182Ta	7000832645600000000♠8.326456	7006988700000000000♠9.887×10^6	β^−	114.4 d
436	^127mTe	7000876575899999999♠8.765759	7006941800000000000♠9.418×10^6	I	109 d
437	^88Y	7000902927200000000♠9.029272	7006921200000000000♠9.212×10^6	β^+	106.6 d
438	^257Fm	7000772661900000000♠7.726619	7006868300000000000♠8.683×10^6	α, SF	100.5 d
439	^185Os	7000830273000000000♠8.302730	7006808700000000000♠8.087×10^6	β^+	93.6 d
440	^168Tm	7000843631600000000♠8.436316	7006804400000000000♠8.044×10^6	β^+, β^−	93.1 d
441	^149Eu	7000858439500000000♠8.584395	7006804400000000000♠8.044×10^6	β^+	93.1 d
442	^35S	7000889551000000000♠8.895510	7006756100000000000♠7.561×10^6	β^−	87.51 d
443	^83Rb	7000902403799999999♠9.024038	7006744800000000000♠7.448×10^6	β^+	86.2 d
444	^46Sc	7000897909100000000♠8.979091	7006723900000000000♠7.239×10^6	β^−	83.78 d
445	^88Zr	7000902158900000000♠9.021589	7006720600000000000♠7.206×10^6	β^+	83.4 d
446	^73As	7000904334100000000♠9.043341	7006693800000000000♠6.938×10^6	β^+	80.3 d
447	^56Co	7000907203100000000♠9.072031	7006667300000000000♠6.673×10^6	β^+	77.23 d
448	^185W	7000830586600000000♠8.305866	7006648900000000000♠6.489×10^6	β^−	75.1 d
449	^160Tb	7000849534600000000♠8.495346	7006624700000000000♠6.247×10^6	β^−	72.3 d
450	^58Co	7000910315300000000♠9.103153	7006612200000000000♠6.122×10^6	β^+	70.86 d
451	^183Re	7000832166100000000♠8.321661	7006604800000000000♠6.048×10^6	β^+	70 d
452	^175Hf	7000838266499999999♠8.382665	7006604800000000000♠6.048×10^6	β^+	70 d
453	^188W	7000827700300000000♠8.277003	7006602900000000000♠6.029×10^6	β^−	69.78 d
454	^85Sr	7000902548000000000♠9.025480	7006560200000000000♠5.602×10^6	β^+	64.84 d
455	^95Zr	7000897298900000000♠8.972989	7006553200000000000♠5.532×10^6	β^−	64.03 d
456	^95mTc	7000897635900000000♠8.976359	7006527000000000000♠5.270×10^6	β^+, I	61 d
457	^254Cf	7000775108700000000♠7.751087	7006522700000000000♠5.227×10^6	SF, α	60.5 d
458	^124Sb	7000877794300000000♠8.777943	7006519400000000000♠5.194×10^6	β^−	60.12 d
459	^125I	7000878201900000000♠8.782019	7006513200000000000♠5.132×10^6	β^+	59.4 d
460	^91Y	7000902017400000000♠9.020174	7006505500000000000♠5.055×10^6	β^−	58.51 d
461	^148Eu	7000858688199999999♠8.586882	7006470900000000000♠4.709×10^6	β^+, α	54.5 d
462	^7Be	7000581847000000000♠5.818470	7006459800000000000♠4.598×10^6	β^+	53.22 d
463	^258Md	7000771594800000000♠7.715948	7006445000000000000♠4.450×10^6	α, SF	51.5 d
464	^89Sr	7000903996899999999♠9.039969	7006436900000000000♠4.369×10^6	β^−	50.57 d
465	^114mIn	7000884660800000000♠8.846608	7006427800000000000♠4.278×10^6	I, β^+	49.51 d
466	^146Gd	7000859251199999999♠8.592512	7006417100000000000♠4.171×10^6	β^+	48.28 d
467	^203Hg	7000819580599999999♠8.195806	7006402600000000000♠4.026×10^6	β^−	46.6 d
468	^237Pu	7000788106000000000♠7.881060	7006390500000000000♠3.905×10^6	β^+, α	45.2 d
469	^115mCd	7000883575400000000♠8.835754	7006385000000000000♠3.850×10^6	β^−	44.56 d
470	^59Fe	7000909951600000000♠9.099516	7006384400000000000♠3.844×10^6	β^−	44.49 d
471	^181Hf	7000833327199999999♠8.333272	7006366200000000000♠3.662×10^6	β^−	42.38 d
472	^148mPm	7000858980000000000♠8.589800	7006356700000000000♠3.567×10^6	β^−, I	41.28 d
473	^105Ag	7000890054700000000♠8.900547	7006356700000000000♠3.567×10^6	β^+	41.28 d
474	^255Es	7000774156700000000♠7.741567	7006343900000000000♠3.439×10^6	β^−, α, SF	39.8 d
475	^103Ru	7000891850000000000♠8.918500	7006339200000000000♠3.392×10^6	β^−	39.26 d
476	^127Xe	7000876676800000000♠8.766768	7006314500000000000♠3.145×10^6	β^+	36.4 d
477	^95Nb	7000898482100000000♠8.984821	7006302300000000000♠3.023×10^6	β^−	34.99 d
478	^37Ar	7000890775200000000♠8.907752	7006302000000000000♠3.020×10^6	β^+	34.95 d
479	^129mTe	7000874495300000000♠8.744953	7006290300000000000♠2.903×10^6	I, β^−	33.6 d
480	^84Rb	7000902073200000000♠9.020732	7006286000000000000♠2.860×10^6	β^+, β^−	33.1 d
481	^241Cm	7000784849200000000♠7.848492	7006283400000000000♠2.834×10^6	β^+, α	32.8 d
482	^141Ce	7000867728600000000♠8.677286	7006280900000000000♠2.809×10^6	β^−	32.51 d
483	^169Yb	7000842854600000000♠8.428546	7006276700000000000♠2.767×10^6	β^+	32.03 d
484	^260Md	7000769978900000000♠7.699789	7006274800000000000♠2.748×10^6	SF, α, β^+, β^−	31.81 d
485	^51Cr	7000908012699999999♠9.080127	7006239300000000000♠2.393×10^6	β^+	27.7 d
486	^240Cm	7000785580500000000♠7.855805	7006233300000000000♠2.333×10^6	α, β^+, SF	27 d
487	^233Pa	7000791042600000000♠7.910426	7006233100000000000♠2.331×10^6	β^−	26.98 d
488	^82Sr	7000899825399999999♠8.998254	7006220800000000000♠2.208×10^6	β^+	25.56 d
489	^33P	7000886943400000000♠8.869434	7006218900000000000♠2.189×10^6	β^−	25.34 d
490	^234Th	7000789776300000000♠7.897763	7006208199999999999♠2.082×10^6	β^−	24.1 d
491	^147Eu	7000859887900000000♠8.598879	7006208199999999999♠2.082×10^6	β^+, α	24.1 d
492	^178W	7000835456300000000♠8.354563	7006186600000000000♠1.866×10^6	β^+	21.6 d
493	^230U	7000793387100000000♠7.933871	7006179700000000000♠1.797×10^6	α, SF	20.8 d
494	^253Es	7000775901900000000♠7.759019	7006176900000000000♠1.769×10^6	α, SF	20.47 d
495	^227Th	7000795764400000000♠7.957644	7006161400000000000♠1.614×10^6	α	18.68 d
496	^86Rb	7000903350200000000♠9.033502	7006161100000000000♠1.611×10^6	β^−, β^+	18.65 d
497	^253Cf	7000775788500000000♠7.757885	7006153900000000000♠1.539×10^6	β^−, α	17.81 d
498	^74As	7000902889500000000♠9.028895	7006153500000000000♠1.535×10^6	β^+, β^−	17.77 d
499	^230Pa	7000793143600000000♠7.931436	7006150300000000000♠1.503×10^6	β^+, β^−, α	17.40 d
500	^103Pd	7000892063800000000♠8.920638	7006146800000000000♠1.468×10^6	β^+	16.99 d
501	^99Rh	7000893571100000000♠8.935711	7006139100000000000♠1.391×10^6	β^+	16.1 d
502	^48V	7000899789000000000♠8.997890	7006138000000000000♠1.380×10^6	β^+	15.97 d
503	^191Os	7000826187000000000♠8.261870	7006133100000000000♠1.331×10^6	β^−	15.41 d
504	^205Bi	7000817406899999999♠8.174069	7006132300000000000♠1.323×10^6	β^+	15.31 d
505	^156Eu	7000852064200000000♠8.520642	7006131200000000000♠1.312×10^6	β^−	15.19 d
506	^225Ra	7000797357600000000♠7.973576	7006128700000000000♠1.287×10^6	β^−	14.9 d
507	^32P	7000883086499999999♠8.830865	7006123200000000000♠1.232×10^6	β^−	14.26 d
508	^143Pr	7000865225800000000♠8.652258	7006117200000000000♠1.172×10^6	β^−	13.56 d
509	^189Ir	7000827478299999999♠8.274783	7006114000000000000♠1.140×10^6	β^+	13.19 d
510	^136Cs	7000870617100000000♠8.706171	7006112700000000000♠1.127×10^6	β^−	13.04 d
511	^126I	7000876902600000000♠8.769026	7006111700000000000♠1.117×10^6	β^+, β^−	12.93 d
512	^140Ba	7000866612000000000♠8.666120	7006110200000000000♠1.102×10^6	β^−	12.75 d
513	^126Sb	7000875704200000000♠8.757042	7006106700000000000♠1.067×10^6	β^−	12.35 d
514	^202Tl	7000819995600000000♠8.199956	7006105700000000000♠1.057×10^6	β^+	12.23 d
515	^190Ir	7000826475499999999♠8.264755	7006101800000000000♠1.018×10^6	β^+	11.78 d
516	^131Ba	7000873303700000000♠8.733037	7005993600000000000♠9.936×10^5	β^+	11.5 d
517	^223Ra	7000799404200000000♠7.994042	7005987600000000000♠9.876×10^5	α	11.43 d
518	^71Ge	7000905594299999999♠9.055943	7005987600000000000♠9.876×10^5	β^+	11.43 d
519	^147Nd	7000860297300000000♠8.602973	7005948700000000000♠9.487×10^5	β^−	10.98 d
520	^246Pu	7000780549400000000♠7.805494	7005936600000000000♠9.366×10^5	β^−	10.84 d
521	^188Pt	7000827251399999999♠8.272514	7005881300000000000♠8.813×10^5	β^+, α	10.2 d
522	^225Ac	7000797515900000000♠7.975159	7005864000000000000♠8.640×10^5	α	10 d
523	^131Cs	7000874354100000000♠8.743541	7005837100000000000♠8.371×10^5	β^+
524	^125Sn	7000875851499999999♠8.758515	7005832900000000000♠8.329×10^5	β^−
525	^169Er	7000843185199999999♠8.431852	7005811500000000000♠8.115×10^5	β^−
526	^149Gd	7000857557600000000♠8.575576	7005801800000000000♠8.018×10^5	β^+, α
527	^167Tm	7000844586600000000♠8.445866	7005799200000000000♠7.992×10^5	β^+
528	^206Po	7000815959000000000♠8.159590	7005760300000000000♠7.603×10^5	β^+, α
529	^72Se	7000901430000000000♠9.014300	7005725800000000000♠7.258×10^5	β^+
530	^106mAg	7000889063900000000♠8.890639	7005715400000000000♠7.154×10^5	β^+
531	^171Lu	7000840953200000000♠8.409532	7005711900000000000♠7.119×10^5	β^+
532	^131I	7000873884200000000♠8.738842	7005693000000000000♠6.930×10^5	β^−
533	^257Es	7000772346800000000♠7.723468	7005665300000000000♠6.653×10^5	β^−, SF
534	^111Ag	7000886611100000000♠8.866111	7005643700000000000♠6.437×10^5	β^−
535	^161Tb	7000849038300000000♠8.490383	7005596700000000000♠5.967×10^5	β^−
536	^237U	7000787980000000000♠7.879800	7005583200000000000♠5.832×10^5	β^−
537	^172Lu	7000840121700000000♠8.401217	7005578900000000000♠5.789×10^5	β^+
538	^132Cs	7000873159899999999♠8.731599	7005559900000000000♠5.599×10^5	β^+, β^−
539	^206Bi	7000816855100000000♠8.168551	7005539400000000000♠5.394×10^5	β^+
540	^196Au	7000823020500000000♠8.230205	7005532800000000000♠5.328×10^5	β^+, β^−
541	^56Ni	7000903389900000000♠9.033899	7005524900000000000♠5.249×10^5	β^+
542	^118Te	7000881472600000000♠8.814726	7005518400000000000♠5.184×10^5	β^+
543	^145Eu	7000860924500000000♠8.609245	7005512399999999999♠5.124×10^5	β^+
544	^120mSb	7000880819400000000♠8.808194	7005497700000000000♠4.977×10^5	β^+
545	^52Mn	7000904643100000000♠9.046431	7005483100000000000♠4.831×10^5	β^+
546	^156Tb	7000852066700000000♠8.520667	7005462200000000000♠4.622×10^5	β^+
547	^155Tb	7000853103100000000♠8.531031	7005459600000000000♠4.596×10^5	β^+
548	^133Xe	7000873030200000000♠8.730302	7005453000000000000♠4.530×10^5	β^−
549	^183Ta	7000831884700000000♠8.318847	7005440599999999999♠4.406×10^5	β^−
550	^245Bk	7000781902000000000♠7.819020	7005426800000000000♠4.268×10^5	β^+, α
551	^119mTe	7000880177300000000♠8.801773	7005406100000000000♠4.061×10^5	β^+, I
552	^146Eu	7000859956000000000♠8.599560	7005398300000000000♠3.983×10^5	β^+
553	^47Ca	7000897218100000000♠8.972181	7005391900000000000♠3.919×10^5	β^−
554	^234Np	7000790057100000000♠7.900571	7005380200000000000♠3.802×10^5	β^+
555	^96Tc	7000896525500000000♠8.965255	7005369800000000000♠3.698×10^5	β^+
556	^231U	7000792497700000000♠7.924977	7005362900000000000♠3.629×10^5	β^+, α
557	^175Yb	7000838390200000000♠8.383902	7005361600000000000♠3.616×10^5	β^−
558	^124I	7000877588400000000♠8.775884	7005360800000000000♠3.608×10^5	β^+
559	^127Sb	7000875400499999999♠8.754005	7005332600000000000♠3.326×10^5	β^−
560	^222Rn	7000799757300000000♠7.997573	7005330400000000000♠3.304×10^5	α
561	^224Ra	7000798727700000000♠7.987277	7005313800000000000♠3.138×10^5	α
562	^100Pd	7000892358700000000♠8.923587	7005313600000000000♠3.136×10^5	β^+
563	^166Dy	7000844837600000000♠8.448376	7005293800000000000♠2.938×10^5	β^−
564	^140Nd	7000867311300000000♠8.673113	7005291200000000000♠2.912×10^5	β^+
565	^47Sc	7000901456400000000♠9.014564	7005289400000000000♠2.894×10^5	β^−
566	^87Y	7000902556500000000♠9.025565	7005287300000000000♠2.873×10^5	β^+
567	^89Zr	7000902491200000000♠9.024912	7005282300000000000♠2.823×10^5	β^+
568	^67Ga	7000906953200000000♠9.069532	7005281900000000000♠2.819×10^5	β^+
569	^132Te	7000871664600000000♠8.716646	7005276800000000000♠2.768×10^5	β^−
570	^134Ce	7000870443200000000♠8.704432	7005273000000000000♠2.730×10^5	β^+
571	^199Au	7000821753400000000♠8.217534	7005271200000000000♠2.712×10^5	β^−
572	^201Tl	7000820656100000000♠8.206561	7005262500000000000♠2.625×10^5	β^+
573	^253Fm	7000775769100000000♠7.757691	7005259200000000000♠2.592×10^5	β^+, α
574	^191Pt	7000825822800000000♠8.258228	7005247300000000000♠2.473×10^5	β^+
575	^111In	7000886768799999999♠8.867688	7005242300000000000♠2.423×10^5	β^+
576	^97Ru	7000895908000000000♠8.959080	7005241100000000000♠2.411×10^5	β^+
577	^99Mo	7000893966900000000♠8.939669	7005237500000000000♠2.375×10^5	β^−
578	^122Sb	7000879534600000000♠8.795346	7005235300000000000♠2.353×10^5	β^−, β^+
579	^71As	7000902758100000000♠9.027581	7005235000000000000♠2.350×10^5	β^+
580	^198Au	7000822073200000000♠8.220732	7005232900000000000♠2.329×10^5	β^−
581	^197Hg	7000822635800000000♠8.226358	7005230900000000000♠2.309×10^5	β^+
582	^90Y	7000903229400000000♠9.032294	7005230600000000000♠2.306×10^5	β^−
583	^182Re	7000832105299999999♠8.321053	7005230399999999999♠2.304×10^5	β^+
584	^172Tm	7000840493200000000♠8.404932	7005229000000000000♠2.290×10^5	β^−
585	^67Cu	7000907608600000000♠9.076086	7005222600000000000♠2.226×10^5	β^−
586	^44mSc	7000892462699999999♠8.924627	7005211000000000000♠2.110×10^5	I, β^+
587	^128Ba	7000873852300000000♠8.738523	7005210000000000000♠2.100×10^5	β^+
588	^77Br	7000902243099999999♠9.022431	7005205300000000000♠2.053×10^5	β^+
589	^166Yb	7000844234000000000♠8.442340	7005204100000000000♠2.041×10^5	β^+
590	^177Ta	7000836355300000000♠8.363553	7005203600000000000♠2.036×10^5	β^+
591	^239Np	7000786499900000000♠7.864999	7005203600000000000♠2.036×10^5	β^−
592	^153Tb	7000853747100000000♠8.537471	7005202199999999999♠2.022×10^5	β^+
593	^66Ni	7000907142299999999♠9.071423	7005196600000000000♠1.966×10^5	β^−
594	^247Pu	7000779197500000000♠7.791975	7005196100000000000♠1.961×10^5	β^−
595	^149Pm	7000858187100000000♠8.581871	7005191100000000000♠1.911×10^5	β^−
596	^203Pb	7000819343100000000♠8.193431	7005186900000000000♠1.869×10^5	β^+
597	^238Np	7000787193100000000♠7.871931	7005182900000000000♠1.829×10^5	β^−
598	^240Am	7000785669400000000♠7.856694	7005182900000000000♠1.829×10^5	β^+, α
599	^172Er	7000839975200000000♠8.399752	7005177500000000000♠1.775×10^5	β^−
600	^170Lu	7000840844500000000♠8.408445	7005173800000000000♠1.738×10^5	β^+
601	^252Cm	7000775743900000000♠7.757439	< 7005172800000000000♠1.728×10^5	β^−
602	^72Zn	7000901759100000000♠9.017591	7005167400000000000♠1.674×10^5	β^−
603	^153Sm	7000854561400000000♠8.545614	7005166600000000000♠1.666×10^5	β^−
604	^202Pt	7000818320900000000♠8.183209	7005158400000000000♠1.584×10^5	β^−
605	^48Sc	7000899832700000000♠8.998327	7005157200000000000♠1.572×10^5	β^−
606	^246Bk	7000781128700000000♠7.811287	7005155500000000000♠1.555×10^5	β^+, α
607	^195mHg	7000822939900000000♠8.229399	7005149800000000000♠1.498×10^5	I, β^+
608	^188Ir	7000827520000000000♠8.275200	7005149400000000000♠1.494×10^5	β^+
609	^140La	7000867362000000000♠8.673620	7005145000000000000♠1.450×10^5	β^−
610	^69Ge	7000904379999999999♠9.043800	7005140600000000000♠1.406×10^5	β^+
611	^77As	7000903128300000000♠9.031283	7005139800000000000♠1.398×10^5	β^−
612	^119Sb	7000882323500000000♠8.823235	7005137500000000000♠1.375×10^5	β^+
613	^147Gd	7000858400100000000♠8.584001	7005137000000000000♠1.370×10^5	β^+
614	^194Au	7000823762600000000♠8.237626	7005136900000000000♠1.369×10^5	β^+
615	^229Pa	7000794076900000000♠7.940769	7005129600000000000♠1.296×10^5	β^+, α
616	^246Cf	7000781079200000000♠7.810792	7005128499999999999♠1.285×10^5	α, β^+, SF
617	^57Ni	7000905522200000000♠9.055222	7005128200000000000♠1.282×10^5	β^+
618	^105Rh	7000890795600000000♠8.907956	7005127299999999999♠1.273×10^5	β^−
619	^82Br	7000901640699999999♠9.016407	7005127000000000000♠1.270×10^5	β^−
620	^79Kr	7000901364399999999♠9.013644	7005126099999999999♠1.261×10^5	β^+
621	^137mCe	7000869632700000000♠8.696327	7005123800000000000♠1.238×10^5	I, β^+
622	^169Lu	7000841497800000000♠8.414978	7005122600000000000♠1.226×10^5	β^+
623	^143Ce	7000864204100000000♠8.642041	7005118900000000000♠1.189×10^5	β^−
624	^251Es	7000777446700000000♠7.774467	7005118800000000000♠1.188×10^5	β^+, α
625	^83Sr	7000899656800000000♠8.996568	7005116700000000000♠1.167×10^5	β^+
626	^129Cs	7000874962200000000♠8.749622	7005115399999999999♠1.154×10^5	β^+
627	^268Db	7000763513300000000♠7.635133	7005115199999999999♠1.152×10^5	SF
628	^232Pa	7000791637900000000♠7.916379	7005113199999999999♠1.132×10^5	β^−, β^+
629	^193Os	7000824434800000000♠8.244348	7005108400000000000♠1.084×10^5	β^−
630	^165Tm	7000845275799999999♠8.452758	7005108200000000000♠1.082×10^5	β^+
631	^131mTe	7000872039200000000♠8.720392	7005108000000000000♠1.080×10^5	β^−, I
632	^226Ac	7000796376100000000♠7.963761	7005105700000000000♠1.057×10^5	β^−, β^+, α
633	^160Er	7000848419000000000♠8.484190	7005102899999999999♠1.029×10^5	β^+
634	^151Pm	7000855738700000000♠8.557387	7005102200000000000♠1.022×10^5	β^−
635	^76As	7000902250500000000♠9.022505	7004945400000000000♠9.454×10^4	β^−
636	^200Tl	7000820656700000000♠8.206567	7004939600000000000♠9.396×10^4	β^+
637	^72As	7000901896600000000♠9.018966	7004936000000000000♠9.360×10^4	β^+
638	^231Th	7000792493200000000♠7.924932	7004918700000000000♠9.187×10^4	β^−, α
639	^252Fm	7000776649800000000♠7.766498	7004914000000000000♠9.140×10^4	α, SF
640	^189Re	7000827226900000000♠8.272269	7004874800000000000♠8.748×10^4	β^−	1.01 d

半衰期低於一日但超過1小時

no	核素	能量	半衰期	衰變方式
641	^187W	7000828472200000000♠8.284722	7004853900000000000♠8.539×10^4	β^−
642	^173Hf	7000839161700000000♠8.391617	7004849600000000000♠8.496×10^4	β^+
643	^96Nb	7000896303600000000♠8.963036	7004840600000000000♠8.406×10^4	β^−
644	^154mTb	7000852691200000000♠8.526912	7004817200000000000♠8.172×10^4	β^+, I
645	^43K	7000892232699999999♠8.922327	7004802800000000000♠8.028×10^4	β^−
646	^182Os	7000831643200000000♠8.316432	7004795600000000000♠7.956×10^4	β^+
647	^228Pa	7000794446800000000♠7.944468	7004792000000000000♠7.920×10^4	β^+, α
648	^48Cr	7000896339000000000♠8.963390	7004776200000000000♠7.762×10^4	β^+
649	^200Pb	7000820254199999999♠8.202542	7004774000000000000♠7.740×10^4	β^+
650	^112Pd	7000884218500000000♠8.842185	7004757100000000000♠7.571×10^4	β^−
651	^28Mg	7000860770600000000♠8.607706	7004752900000000000♠7.529×10^4	β^−
652	^100Rh	7000892716700000000♠8.927167	7004748800000000000♠7.488×10^4	β^+
653	^133I	7000871709400000000♠8.717094	7004748800000000000♠7.488×10^4	β^−
654	^122Xe	7000877095900000000♠8.770959	7004723600000000000♠7.236×10^4	β^+
655	^255Fm	7000774270400000000♠7.742704	7004722500000000000♠7.225×10^4	α, SF
656	^181Re	7000832829400000000♠8.328294	7004716400000000000♠7.164×10^4	β^+
657	^197Pt	7000822575600000000♠8.225756	7004716100000000000♠7.161×10^4	β^−
658	^135La	7000871317900000000♠8.713179	7004702000000000000♠7.020×10^4	β^+
659	^142Pr	7000866141700000000♠8.661417	7004688300000000000♠6.883×10^4	β^−, β^+
660	^200mAu	7000820287700000000♠8.202877	7004673200000000000♠6.732×10^4	β^−, I
661	^159Gd	7000850257600000000♠8.502576	7004665200000000000♠6.652×10^4	β^−
662	^135Ce	7000869817900000000♠8.698179	7004637200000000000♠6.372×10^4	β^+
663	^193Au	7000824435300000000♠8.244353	7004635400000000000♠6.354×10^4	β^+
664	^151Tb	7000854569200000000♠8.545692	7004633900000000000♠6.339×10^4	β^+, α
665	^55Co	7000905364700000000♠9.053647	7004631100000000000♠6.311×10^4	β^+
666	^152Tb	7000853659100000000♠8.536591	7004630000000000000♠6.300×10^4	β^+, α
667	^188Re	7000827886000000000♠8.278860	7004612100000000000♠6.121×10^4	β^−
668	^125Xe	7000876886400000000♠8.768864	7004608399999999999♠6.084×10^4	β^+
669	^97Zr	7000892645100000000♠8.926451	7004602799999999999♠6.028×10^4	β^−
670	^186Ir	7000828193500000000♠8.281935	7004599000000000000♠5.990×10^4	β^+
671	^86Zr	7000897597900000000♠8.975979	7004594000000000000♠5.940×10^4	β^+
672	^76Br	7000899618300000000♠8.996183	7004583200000000000♠5.832×10^4	β^+
673	^170Hf	7000840221000000000♠8.402210	7004576400000000000♠5.764×10^4	β^+
674	^157Eu	7000851379200000000♠8.513792	7004546500000000000♠5.465×10^4	β^−
675	^24Na	7000842208200000000♠8.422082	7004538200000000000♠5.382×10^4	β^−
676	^76Kr	7000897940600000000♠8.979406	7004532800000000000♠5.328×10^4	β^+
677	^86Y	7000899323399999999♠8.993234	7004530600000000000♠5.306×10^4	β^+
678	^211Rn	7000811282500000000♠8.112825	7004525600000000000♠5.256×10^4	β^+, α
679	^90Nb	7000898972700000000♠8.989727	7004525600000000000♠5.256×10^4	β^+
680	^185Ir	7000828938200000000♠8.289382	7004518400000000000♠5.184×10^4	β^+
681	^240U	7000785168200000000♠7.851682	7004507599999999999♠5.076×10^4	β^−
682	^72Ga	7000902395800000000♠9.023958	7004507400000000000♠5.074×10^4	β^−
683	^69mZn	7000905653600000000♠9.056536	7004495400000000000♠4.954×10^4	I, β^−
684	^109Pd	7000887506100000000♠8.875061	7004493200000000000♠4.932×10^4	β^−
685	^123I	7000878631100000000♠8.786311	7004476000000000000♠4.760×10^4	β^+
686	^265Rf	7000766113900000000♠7.661139	≈ 7004468000000000000♠4.680×10^4	α
687	^183Os	7000830990700000000♠8.309907	7004468000000000000♠4.680×10^4	β^+
688	^64Cu	7000909358100000000♠9.093581	7004457200000000000♠4.572×10^4	β^+, β^−
689	^200Pt	7000820434200000000♠8.204342	7004450000000000000♠4.500×10^4	β^−
690	^130I	7000874003500000000♠8.740035	7004445000000000000♠4.450×10^4	β^−
691	^42K	7000890517500000000♠8.905175	7004443600000000000♠4.436×10^4	β^−
692	^171Hf	7000839547999999999♠8.395480	7004435600000000000♠4.356×10^4	β^+
693	^239Am	7000786466600000000♠7.864666	7004428400000000000♠4.284×10^4	β^+, α
694	^193mHg	7000823148300000000♠8.231483	7004424800000000000♠4.248×10^4	β^+, I
695	^203Bi	7000817743600000000♠8.177436	7004423400000000000♠4.234×10^4	β^+
696	^77Ge	7000899618500000000♠8.996185	7004406799999999999♠4.068×10^4	β^−
697	^204Bi	7000817265100000000♠8.172651	7004403900000000000♠4.039×10^4	β^+
698	^266Lr		7004396000000000000♠3.960×10^4	SF
698	^189Pt	7000826435900000000♠8.264359	7004391300000000000♠3.913×10^4	β^+
699	^212Pb	7000810692800000000♠8.106928	7004383000000000000♠3.830×10^4	β^−
700	^175Ta	7000837081300000000♠8.370813	7004378000000000000♠3.780×10^4	β^+
701	^245Pu	7000781375200000000♠7.813752	7004378000000000000♠3.780×10^4	β^−
702	^187Ir	7000828371300000000♠8.283713	7004378000000000000♠3.780×10^4	β^+
703	^165Er	7000846240600000000♠8.462406	7004373000000000000♠3.730×10^4	β^+
704	^93Y	7000897695100000000♠8.976951	7004366500000000000♠3.665×10^4	β^−
705	^244Am	7000782591400000000♠7.825914	7004363600000000000♠3.636×10^4	β^−
706	^266Rf	7000765817000000000♠7.658170	≈ 7004360000000000000♠3.600×10^4	α, SF
709	^155Dy	7000851752100000000♠8.517521	7004356400000000000♠3.564×10^4	β^+
710	^91Sr	7000899050300000000♠8.990503	7004346700000000000♠3.467×10^4	β^−
711	^66Ga	7000903684299999999♠9.036843	7004341600000000000♠3.416×10^4	β^+
712	^156Sm	7000851600700000000♠8.516007	7004338400000000000♠3.384×10^4	β^−
713	^201Pb	7000819698900000000♠8.196989	7004335900000000000♠3.359×10^4	β^+
714	^62Zn	7000905795700000000♠9.057957	7004330700000000000♠3.307×10^4	β^+
715	^135Xe	7000871145300000000♠8.711453	7004329000000000000♠3.290×10^4	β^−
716	^128Sb	7000873234300000000♠8.732343	7004324400000000000♠3.244×10^4	β^−
717	^234Pu	7000789889200000000♠7.898892	7004316800000000000♠3.168×10^4	β^+, α
718	^184Ta	7000830415400000000♠8.304154	7004313200000000000♠3.132×10^4	β^−
719	^250Es	7000777840700000000♠7.778407	7004309600000000000♠3.096×10^4	β^+, α
720	^101Pd	7000891714900000000♠8.917149	7004304900000000000♠3.049×10^4	β^+
721	^52Fe	7000900078899999999♠9.000789	7004297900000000000♠2.979×10^4	β^+
722	^173Tm	7000839652400000000♠8.396524	7004296600000000000♠2.966×10^4	β^−
723	^157Dy	7000851354400000000♠8.513544	7004293000000000000♠2.930×10^4	β^+
724	^210At	7000812833700000000♠8.128337	7004291600000000000♠2.916×10^4	β^+, α
725	^176Ta	7000836320199999999♠8.363202	7004291200000000000♠2.912×10^4	β^+
726	^166Tm	7000844418300000000♠8.444183	7004277199999999999♠2.772×10^4	β^+
727	^256mEs	7000773074200000000♠7.730742	7004273600000000000♠2.736×10^4	β^−
728	^171Er	7000840890100000000♠8.408901	7004270600000000000♠2.706×10^4	β^−
729	^199Tl	7000821233299999999♠8.212333	7004267100000000000♠2.671×10^4	β^+
730	^211At	7000812652700000000♠8.126527	7004259700000000000♠2.597×10^4	β^+, α
731	^73Se	7000900582099999999♠9.005821	7004257400000000000♠2.574×10^4	β^+
732	^234Pa	7000789893000000000♠7.898930	7004241200000000000♠2.412×10^4	β^−
733	^135I	7000869199399999999♠8.691994	7004236500000000000♠2.365×10^4	β^−
734	^107Cd	7000888427100000000♠8.884271	7004234000000000000♠2.340×10^4	β^+
735	^82mRb	7000899960800000000♠8.999608	7004233000000000000♠2.330×10^4	β^+, I
736	^153Dy	7000852328800000000♠8.523288	7004230400000000000♠2.304×10^4	β^+, α
737	^127Cs	7000875038299999999♠8.750383	7004225000000000000♠2.250×10^4	β^+
738	^228Ac	7000794459100000000♠7.944591	7004221400000000000♠2.214×10^4	β^−
740	^145Pr	7000862051400000000♠8.620514	7004215400000000000♠2.154×10^4	β^−
741	^207Po	7000815415800000000♠8.154158	7004208800000000000♠2.088×10^4	β^+, α
742	^90Mo	7000896207199999999♠8.962072	7004200199999999999♠2.002×10^4	β^+
743	^257Md	7000772504000000000♠7.725040	7004198700000000000♠1.987×10^4	β^+, α, SF
744	^111mPd	7000884458899999999♠8.844589	7004198000000000000♠1.980×10^4	I, β^−
745	^139mNd	7000865952899999999♠8.659529	7004198000000000000♠1.980×10^4	β^+, I
746	^209At	7000813295400000000♠8.132954	7004194800000000000♠1.948×10^4	β^+, α
747	^113Ag	7000884153100000000♠8.841531	7004193300000000000♠1.933×10^4	β^−
748	^198Tl	7000821016599999999♠8.210166	7004190800000000000♠1.908×10^4	β^+
749	^251Fm	7000776859000000000♠7.768590	7004190800000000000♠1.908×10^4	β^+, α
750	^138Nd	7000866566100000000♠8.665661	7004181400000000000♠1.814×10^4	β^+
751	^160mHo	7000848587700000000♠8.485877	7004180700000000000♠1.807×10^4	I, β^+
752	^118mSb	7000881496300000000♠8.814963	7004180000000000000♠1.800×10^4	β^+
754	^243Pu	7000783364800000000♠7.833648	7004178400000000000♠1.784×10^4	β^−
755	^192Au	7000824203600000000♠8.242036	7004177800000000000♠1.778×10^4	β^+
756	^110In	7000885746400000000♠8.857464	7004176400000000000♠1.764×10^4	β^+
757	^133mCe	7000869077100000000♠8.690771	7004176400000000000♠1.764×10^4	β^+
758	^94Tc	7000896658300000000♠8.966583	7004175800000000000♠1.758×10^4	β^+
759	^85mY	7000898687999999999♠8.986880	7004175000000000000♠1.750×10^4	β^+, I
760	^73Ga	7000902611200000000♠9.026112	7004175000000000000♠1.750×10^4	β^−
761	^192Hg	7000823805100000000♠8.238051	7004174600000000000♠1.746×10^4	β^+
762	^132La	7000870572100000000♠8.705721	7004172800000000000♠1.728×10^4	β^+
763	^179Lu	7000834542800000000♠8.345428	7004165200000000000♠1.652×10^4	β^−
764	^81Rb	7000900287100000000♠9.002871	7004164500000000000♠1.645×10^4	β^+
765	^243Bk	7000782980100000000♠7.829801	7004162000000000000♠1.620×10^4	β^+, α
766	^105Ru	7000888968900000000♠8.889689	7004159800000000000♠1.598×10^4	β^−
767	^80mBr	7000901887200000000♠9.018872	7004159100000000000♠1.591×10^4	I
768	^139Pr	7000868156500000000♠8.681565	7004158800000000000♠1.588×10^4	β^+
769	^129Sb	7000872735800000000♠8.727358	7004158400000000000♠1.584×10^4	β^−
770	^244Bk	7000782249100000000♠7.822491	7004156600000000000♠1.566×10^4	β^+, α
771	^109In	7000886480500000000♠8.864805	7004151200000000000♠1.512×10^4	β^+
772	^184Hf	7000829687100000000♠8.296871	7004148300000000000♠1.483×10^4	β^−
773	^149Tb	7000855116600000000♠8.551166	7004148200000000000♠1.482×10^4	β^+, α
774	^110Sn	7000885172700000000♠8.851727	7004148000000000000♠1.480×10^4	β^+
775	^262Lr	7000768155600000000♠7.681556	7004144000000000000♠1.440×10^4	SF, β^+, α
776	^71mZn	7000901737000000000♠9.017370	7004142600000000000♠1.426×10^4	β^−, I
777	^141La	7000865954000000000♠8.659540	7004141100000000000♠1.411×10^4	β^−
778	^133La	7000871410900000000♠8.714109	7004140800000000000♠1.408×10^4	β^+
779	^43Sc	7000891290700000000♠8.912907	7004140100000000000♠1.401×10^4	β^+
780	^195mIr	7000823332600000000♠8.233326	7004136800000000000♠1.368×10^4	β^−, I
781	^92Y	7000899320799999999♠8.993208	7004127400000000000♠1.274×10^4	β^−
782	^204Po	7000816119999999999♠8.161200	7004127099999999999♠1.271×10^4	β^+, α
783	^132Ce	7000869613100000000♠8.696131	7004126400000000000♠1.264×10^4	β^+
784	^150Tb	7000854539400000000♠8.545394	7004125299999999999♠1.253×10^4	β^+, α
785	^117mCd	7000880884000000000♠8.808840	7004121000000000000♠1.210×10^4	β^−
786	^61Cu	7000908745200000000♠9.087452	7004120000000000000♠1.200×10^4	β^+
787	^209Pb	7000815560700000000♠8.155607	7004117100000000000♠1.171×10^4	β^−
788	^254Fm	7000775280800000000♠7.752808	7004116600000000000♠1.166×10^4	α, SF
789	^250Bk	7000777952300000000♠7.779523	7004115600000000000♠1.156×10^4	β^−
790	^161Er	7000847635200000000♠8.476352	7004115600000000000♠1.156×10^4	β^+
791	^190mRe	7000825743300000000♠8.257433	7004115200000000000♠1.152×10^4	β^−, I
792	^191Au	7000824834300000000♠8.248343	7004114500000000000♠1.145×10^4	β^+
793	^173Ta	7000837421800000000♠8.374218	7004112999999999999♠1.130×10^4	β^+
794	^112Ag	7000884475600000000♠8.844756	7004112700000000000♠1.127×10^4	β^−
795	^247Cf	7000780356600000000♠7.803566	7004112000000000000♠1.120×10^4	β^+, α
796	^184Ir	7000828659900000000♠8.286599	7004111200000000000♠1.112×10^4	β^+
797	^45Ti	7000893812100000000♠8.938121	7004110900000000000♠1.109×10^4	β^+
798	^167Ho	7000844430400000000♠8.444304	7004108100000000000♠1.081×10^4	β^−
799	^269Db	7000763006400000000♠7.630064	7004108000000000000♠1.080×10^4	α, SF
800	^239Cm	7000785714300000000♠7.857143	7004104400000000000♠1.044×10^4	β^+, α
801	^197Tl	7000821519000000000♠8.215190	7004102200000000000♠1.022×10^4	β^+
802	^88Kr	7000897691800000000♠8.976918	7004102200000000000♠1.022×10^4	β^−
803	^38S	7000877819600000000♠8.778196	7004102200000000000♠1.022×10^4	β^−
804	^117Sb	7000882897700000000♠8.828977	7004100800000000000♠1.008×10^4	β^+
805	^224Ac	7000798099300000000♠7.980993	7004100099999999999♠1.001×10^4	β^+, α, β^−
806	^93Tc	7000897027400000000♠8.970274	7003990000000000000♠9.900×10^3	β^+
807	^150Pm	7000856201400000000♠8.562014	7003964800000000000♠9.648×10^3	β^−
808	^92Sr	7000897206699999999♠8.972067	7003957600000000000♠9.576×10^3	β^−
809	^256Fm	7000773739800000000♠7.737398	7003945600000000000♠9.456×10^3	SF, α
810	^31Si	7000881161799999999♠8.811618	7003943800000000000♠9.438×10^3	β^−
811	^56Mn	7000908757200000000♠9.087572	7003928400000000000♠9.284×10^3	β^−
812	^65Ni	7000907326700000000♠9.073267	7003906200000000000♠9.062×10^3	β^−
813	^176W	7000835905500000000♠8.359055	7003900000000000000♠9.000×10^3	β^+
814	^116Te	7000880641400000000♠8.806414	7003896400000000000♠8.964×10^3	β^+
815	^141Nd	7000866847600000000♠8.668476	7003896400000000000♠8.964×10^3	β^+
816	^161Ho	7000848873700000000♠8.488737	7003892800000000000♠8.928×10^3	β^+
817	^210Rn	7000811703200000000♠8.117032	7003864000000000000♠8.640×10^3	α, β^+
818	^198Pb	7000820289300000000♠8.202893	7003864000000000000♠8.640×10^3	β^+
819	^238Cm	7000786376400000000♠7.863764	7003864000000000000♠8.640×10^3	β^+, α
820	^83Br	7000902324300000000♠9.023243	7003864000000000000♠8.640×10^3	β^−
821	^152Dy	7000853267000000000♠8.532670	7003856800000000000♠8.568×10^3	β^+, α
822	^178mTa	7000835507499999999♠8.355075	7003849600000000000♠8.496×10^3	β^+
823	^187Pt	7000826763800000000♠8.267638	7003846000000000000♠8.460×10^3	β^+
824	^165Dy	7000845689100000000♠8.456891	7003840200000000000♠8.402×10^3	β^−
825	^267Rf	7000764735700000000♠7.647357	7003828000000000000♠8.280×10^3	SF
826	^132I	7000872057000000000♠8.720570	7003826200000000000♠8.262×10^3	β^−
827	^158Er	7000848461900000000♠8.484619	7003824400000000000♠8.244×10^3	β^+
828	^66Ge	7000900496399999999♠9.004964	7003813599999999999♠8.136×10^3	β^+
829	^129Ba	7000873074600000000♠8.730746	7003802800000000000♠8.028×10^3	β^+
830	^177W	7000835211800000000♠8.352118	7003792000000000000♠7.920×10^3	β^+
831	^106mRh	7000888476099999999♠8.884761	7003786000000000000♠7.860×10^3	β^−
832	^138mPr	7000867108799999999♠8.671088	7003763200000000000♠7.632×10^3	β^+
833	^121I	7000878444300000000♠8.784443	7003763200000000000♠7.632×10^3	β^+
834	^127Sn	7000872880000000000♠8.728800	7003756000000000000♠7.560×10^3	β^−
835	^123Xe	7000876440900000000♠8.764409	7003748800000000000♠7.488×10^3	β^+
836	^186Pt	7000827489699999999♠8.274897	7003748800000000000♠7.488×10^3	β^+, α
837	^245Am	7000781867400000000♠7.818674	7003738000000000000♠7.380×10^3	β^−
838	^89Nb	7000897750699999999♠8.977507	7003730800000000000♠7.308×10^3	β^+
839	^117mIn	7000882884900000000♠8.828849	7003697200000000000♠6.972×10^3	β^−, I
840	^177Yb	7000835940100000000♠8.359401	7003688000000000000♠6.880×10^3	β^−
841	^196Tl	7000821161800000000♠8.211618	7003662400000000000♠6.624×10^3	β^+
842	^18F	7000802278900000000♠8.022789	7003658500000000000♠6.585×10^3	β^+
843	^41Ar	7000887785200000000♠8.877852	7003657700000000000♠6.577×10^3	β^−
844	^163Tm	7000845620500000000♠8.456205	7003651600000000000♠6.516×10^3	β^+
845	^239Pa	7000784814800000000♠7.848148	7003648000000000000♠6.480×10^3	β^−
846	^201Bi	7000817787500000000♠8.177875	7003648000000000000♠6.480×10^3	β^+, α
847	^207At	7000813530300000000♠8.135303	7003648000000000000♠6.480×10^3	β^+, α
848	^224Rn	7000797132700000000♠7.971327	7003642000000000000♠6.420×10^3	β^−
849	^80Sr	7000895017700000000♠8.950177	7003637800000000000♠6.378×10^3	β^+
850	^181Os	7000831193500000000♠8.311935	7003630000000000000♠6.300×10^3	β^+
851	^205Po	7000815673700000000♠8.156737	7003626400000000000♠6.264×10^3	β^+, α
852	^149Nd	7000857052900000000♠8.570529	7003622100000000000♠6.221×10^3	β^−
853	^202Bi	7000817396600000000♠8.173966	7003619200000000000♠6.192×10^3	β^+, α
854	^249Es	7000778546400000000♠7.785464	7003613200000000000♠6.132×10^3	β^+, α
855	^147Tb	7000855263400000000♠8.552634	7003612000000000000♠6.120×10^3	β^+
856	^87Zr	7000898337300000000♠8.983373	7003604800000000000♠6.048×10^3	β^+
857	^126Ba	7000872743900000000♠8.727439	7003600000000000000♠6.000×10^3	β^+
858	^61Co	7000910244900000000♠9.102449	7003594000000000000♠5.940×10^3	β^−
859	^95Ru	7000894974900000000♠8.949749	7003591500000000000♠5.915×10^3	β^+
860	^238Am	7000786788200000000♠7.867882	7003588000000000000♠5.880×10^3	β^+, α
861	^208At	7000813137600000000♠8.131376	7003586800000000000♠5.868×10^3	β^+, α
862	^75Br	7000899318100000000♠8.993181	7003580200000000000♠5.802×10^3	β^+
863	^259Md	7000770986000000000♠7.709860	7003576000000000000♠5.760×10^3	SF, α
864	^230Ra	7000792124900000000♠7.921249	7003558000000000000♠5.580×10^3	β^−
865	^142La	7000863495400000000♠8.634954	7003546600000000000♠5.466×10^3	β^−
866	^78As	7000900487900000000♠9.004879	7003544200000000000♠5.442×10^3	β^−
867	^199Pb	7000819811100000000♠8.198111	7003540000000000000♠5.400×10^3	β^+
870	^78Ge	7000899263500000000♠8.992635	7003528000000000000♠5.280×10^3	β^−
871	^255Cf	7000773873900000000♠7.738739	7003510000000000000♠5.100×10^3	β^−
872	^196mIr	7000821944000000000♠8.219440	7003504000000000000♠5.040×10^3	β^−, I
873	^139Ba	7000868221700000000♠8.682217	7003498400000000000♠4.984×10^3	β^−
874	^75Ge	7000902941300000000♠9.029413	7003496700000000000♠4.967×10^3	β^−
875	^120I	7000876957700000000♠8.769577	7003489600000000000♠4.896×10^3	β^+
876	^256Md	7000772906200000000♠7.729062	7003462000000000000♠4.620×10^3	β^+, α, SF
877	^137Pr	7000867845900000000♠8.678459	7003460800000000000♠4.608×10^3	β^+
878	^87Kr	7000899902200000000♠8.999022	7003457800000000000♠4.578×10^3	β^−
879	^164Yb	7000844341900000000♠8.443419	7003454800000000000♠4.548×10^3	β^+
880	^163Er	7000847116800000000♠8.471168	7003450000000000000♠4.500×10^3	β^+
881	^77Kr	7000898261800000000♠8.982618	7003446400000000000♠4.464×10^3	β^+
882	^178Yb	7000835052999999999♠8.350530	7003444000000000000♠4.440×10^3	β^−
883	^267Db	7000764436100000000♠7.644361	7003438000000000000♠4.380×10^3	SF
884	^237Am	7000787483000000000♠7.874830	7003438000000000000♠4.380×10^3	β^+, α
885	^142Sm	7000862761600000000♠8.627616	7003434900000000000♠4.349×10^3	β^+
886	^97Nb	7000895386400000000♠8.953864	7003432600000000000♠4.326×10^3	β^−
887	^185Pt	7000826959800000000♠8.269598	7003425400000000000♠4.254×10^3	β^+
888	^195Tl	7000821571200000000♠8.215712	7003417600000000000♠4.176×10^3	β^+
889	^104Ag	7000888970200000000♠8.889702	7003415200000000000♠4.152×10^3	β^+
890	^174Ta	7000836868400000000♠8.368684	7003410400000000000♠4.104×10^3	β^+
891	^68Ga	7000905788800000000♠9.057888	7003406299999999999♠4.063×10^3	β^+
892	^162mHo	7000847837099999999♠8.478371	7003401999999999999♠4.020×10^3	I, β^+
893	^103Ag	7000889454100000000♠8.894541	7003394200000000000♠3.942×10^3	β^+
894	^249Cm	7000778719100000000♠7.787191	7003384900000000000♠3.849×10^3	β^−
895	^183Hf	7000830788500000000♠8.307885	7003384100000000000♠3.841×10^3	β^−
896	^229Ac	7000793704800000000♠7.937048	7003376200000000000♠3.762×10^3	β^−
897	^117Te	7000879865200000000♠8.798652	7003372000000000000♠3.720×10^3	β^+
898	^240Np	7000785334800000000♠7.853348	7003371400000000000♠3.714×10^3	β^−
899	^212Bi	7000810961700000000♠8.109617	7003363300000000000♠3.633×10^3	β^−, α
900	^116mSb	7000881648300000000♠8.816483	7003361800000000000♠3.618×10^3	β^+
901	^148Tb	7000854794899999999♠8.547949	7003360000000000000♠3.600×10^3	β^+

半衰期之一小時以下的天然同位素

核素	半衰期	衰變方式
^211Pb	36.1 min	β^−
^214Pb	26.8 min	β^−
^223Fr	22 min	β^−, α
^214Bi	19.9 min	β^−, α
^206Hg	8.15 min	β^−
^215Bi	7.6 min	β^−
^221Fr	4.8 min	α
^207Tl	4.77 min	β^−
^206Tl	4.2 min	β^−
^218Po	3.10 min	α, β^−
^208Tl	3.053 min	β^−
^211Bi	2.14 min	α, β^−
^210Tl	1.3 min	β^−
^234mPa	1.17 min	β^−, I
^219At	56 s	α, β^−
^220Rn	55.6 s	α
^219Rn	3.96 s	α
^218At	1.5 s	α, β^−
^211Po	0.516 s	α
^216Po	0.145 s	α
^218Rn	35 ms	α
^215Po	1.781 ms	α
^214Po	164.3 µs	α
^215At	0.1 ms	α
^212Po	299 ns	α

參見

• 原始核素（英语：Primordial nuclide）
• 核素圖
• 同位素地球化學（英语：Isotope geochemistry）
• 放射性同位素
• 單核素元素（英语：Mononuclidic element）
• 單一同位素元素
• 穩定同位素比（英语：Stable isotope）
• 依同位素穩定性排列的元素列表（英语：List of elements by stability of isotopes）
• 依半衰期排列的放射性核素列表

參考文獻

Almost all data are taken from reference.^[3] For more recent updates, see reference.^[4] These sources do not indicate whether certain heavy isotopes starting from Lr, Rf, Db... (etc.) were produced, observed, or only predicted from estimated data.

1. Other sources give the half-life of ¹⁴C as 5730 years (=7011180800000000000♠1.808×10¹¹ seconds)
2. Boutin, Chad. Polonium's Most Stable Isotope Gets Revised Half-Life Measurement. nist.gov. NIST Tech Beat. [9 September 2014]. （原始内容于2015-09-06）. 
3. Jagdish K. Tuli, Nuclear Wallet Cards, 7th edition, April 2005, Brookhaven National Laboratory, US National Nuclear Data Center
4. Interactive Chart of Nuclides (Brookhaven National Laboratory). [2015-09-13]. （原始内容于2009-08-25）. 

• Experimental atomic mass data compiled Nov. 2003 （页面存档备份，存于互联网档案馆）
• J. Magill, G. Pfennig, J. Galy "Karlsruher Nuclide Chart", 7th edition 2006, revised printing Nov. 2007 （页面存档备份，存于互联网档案馆）
• The LIVEChart of Nuclides – IAEA^{[失效連結]} with dynamic half-life filtering
• National Isotope Development Center （页面存档备份，存于互联网档案馆） Reference information on isotopes, and coordination and management of isotope production, availability, and distribution
• U.S. Department of Energy program for isotope production and production research and development