Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 39
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
191
Ta
73
0
190.97156
unbekannt
β
-
100%
193
W
74
0
192.97187
unbekannt
5 Sekunden
β
-
100%
195
Re
75
0
194.97254
unbekannt
6 Sekunden
β
-
100%
197
Os
76
0
196.97283
unbekannt
2 Minuten 48 Sekunden
β
-
100%
199
Ir
77
0
198.973806
+3/2
6 Sekunden
β
-
100%
201
Pt
78
0
200.974513
-5/2
2 Minuten 30 Sekunden
β
-
100%
203
Au
79
0
202.975155
+3/2
1 Minuten
β
-
100%
205
Hg
80
0
204.976073
-1/2
5 Minuten 8.4 Sekunden
β
-
100%
205m
Hg
80
1.5564
204.977744
+13/2
1.1 Millisekunden (ms)
it
100%
207
Tl
81
0
206.977419
+1/2
0.000000000000025894
4 Minuten 46.2 Sekunden
β
-
100%
207m
Tl
81
1.348
206.978867
-11/2
1.33 Sekunden
it
100%
209
Pb
82
0
208.98109
+9/2
3 Stunden 15 Minuten 11 Sekunden
β
-
100%
211
Bi
83
0
210.987269
-9/2
0.0000000000011875
2 Minuten 8.4 Sekunden
α
99.72%
β
-
0.28%
211m
Bi
83
1.257
210.988619
-25/2
1.4 Mikrosekunden (μs)
it
100%
213
Po
84
0
212.992858
+9/2
3.7 Mikrosekunden (μs)
α
100%
213m
Po
84
0.4405
212.993331
+7/2
93 Pikosekunden (ps)
it
100%
α
1e-3%
215
At
85
0
214.998653
-9/2
0.000003501
100 Mikrosekunden (μs)
α
100%
217
Rn
86
0
217.003928
+9/2
540 Mikrosekunden (μs)
α
100%
219
Fr
87
0
219.009252
-9/2
20 Millisekunden (ms)
α
100%
221
Ra
88
0
221.013917
+5/2
28 Sekunden
α
100%
C-14
1e-12%
223
Ac
89
0
223.019137
-5/2
2 Minuten 6 Sekunden
α
99%
ε
1%
225
Th
90
0
225.023951
+3/2
8 Minuten 43.2 Sekunden
α
90%
ε
10%
227
Pa
91
0
227.028805
-5/2
38 Minuten 18 Sekunden
α
85%
ε
15%
229
U
92
0
229.033505
+3/2
58 Minuten
ε
80%
α
20%
231
Np
93
0
231.038245
+5/2
48 Minuten 48 Sekunden
ε
98%
α
2%
233
Pu
94
0
233.042997
+5/2
20 Minuten 54 Sekunden
ε
99.88%
α
0.12%
235
Am
95
0
235.047947
-5/2
10 Minuten 18 Sekunden
ε
99.6%
α
0.4%
237
Cm
96
0
237.052901
+5/2
20 Minuten
ε
100%
α
>0%
239
Bk
97
0
239.05828
+7/2
3 Minuten
ε
100%
α
>0%
241
Cf
98
0
241.063727
-7/2
3 Minuten 46.8 Sekunden
ε
75%
α
25%
243
Es
99
0
243.069547
-3/2
21 Sekunden
ε
70%
α
30%
245
Fm
100
0
245.075385
+1/2
4.2 Sekunden
α
99.9%
f
0.1%
ε
>0%
247
Md
101
0
247.081636
-1/2
1.12 Sekunden
α
100%
f
>0%
247m
Md
101
0.2
247.08185
+7/2
200 Millisekunden (ms)
α
>0%
ε
>0%
249
No
102
0
249.08783
+5/2
57 Mikrosekunden (μs)
f
100%
251
Lr
103
0
251.09436
unbekannt
150 Mikrosekunden (μs)
f
100%
α
>0%
ε
>0%
253
Rf
104
0
253.100689
+7/2
48 Mikrosekunden (μs)
α
50%
f
50%
253m
Rf
104
0.2
253.100903
-1/2
52 Mikrosekunden (μs)
f
100%
255
Db
105
0
255.107398
unbekannt
1.6 Sekunden
α
80%
f
20%