Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 23
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
204
Pt
78
0
203.98061
0
10 Sekunden
β
-
100%
205
Au
79
0
204.97987
+3/2
31 Sekunden
β
-
100%
206
Hg
80
0
205.977515
0
8 Minuten 19.2 Sekunden
β
-
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%
208
Pb
82
0
207.976653
0
52.4
stabil
208m
Pb
82
4.895
207.981908
+10
500 Nanosekunden (ns)
it
100%
209
Bi
83
0
208.980399
-9/2
100
19.2 Trillionen Jahre
α
100%
210
Po
84
0
209.982874
0
99.9983848
138 Tage 9 Stunden
α
100%
210m
Po
84
5.0576
209.988303
+16
263 Nanosekunden (ns)
it
100%
211
At
85
0
210.987496
-9/2
7 Stunden 12 Minuten 50 Sekunden
ε
58.2%
α
41.8%
212
Rn
86
0
211.990704
0
23 Minuten 54 Sekunden
α
100%
213
Fr
87
0
212.99619
-9/2
34.82 Sekunden
α
99.44%
ε
0.56%
214
Ra
88
0
214.000107
0
2.46 Sekunden
α
99.94%
ε
0.06%
214m
Ra
88
1.8652
214.00211
+8
67.3 Mikrosekunden (μs)
it
99.91%
α
0.09%
215
Ac
89
0
215.006454
-9/2
170 Millisekunden (ms)
α
99.91%
ε
0.09%
216
Th
90
0
216.011062
0
26 Millisekunden (ms)
α
99.99%
ε
0.01%
216m
Th
90
2.04
216.013252
+8
134 Mikrosekunden (μs)
it
97.2%
α
2.8%
216m
Th
90
2.637
216.013893
-11
615 Nanosekunden (ns)
it
100%
217
Pa
91
0
217.018324
-9/2
3.6 Millisekunden (ms)
α
100%
217m
Pa
91
1.85
217.02031
-29/2
1.2 Millisekunden (ms)
it
27%
α
73%
218
U
92
0
218.023535
0
510 Mikrosekunden (μs)
α
100%
218m
U
92
2.105
218.025795
+8
560 Mikrosekunden (μs)
α
100%