Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 23
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
157
Ce
58
0
156.95634
+7/2
50 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
157
Pr
59
0
156.94743
-5/2
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
157
Nd
60
0
156.93903
-5/2
2 Sekunden
β
-
>0%
nβ
-
>0%
157
Pm
61
0
156.933039
-5/2
10.56 Sekunden
β
-
100%
157
Sm
62
0
156.928359
-3/2
8 Minuten 1.8 Sekunden
β
-
100%
157
Eu
63
0
156.925424
+5/2
15 Stunden 10 Minuten 48 Sekunden
β
-
100%
157
Gd
64
0
156.92396
-3/2
15.65
stabil
157m
Gd
64
0.4266
156.924418
-11/2
18.5 Mikrosekunden (μs)
it
100%
157
Tb
65
0
156.924025
+3/2
71 Jahre
ε
100%
157
Dy
66
0
156.925466
-3/2
8 Stunden 8 Minuten 24 Sekunden
ε
100%
157m
Dy
66
0.162
156.92564
+9/2
1.3 Mikrosekunden (μs)
it
100%
157m
Dy
66
0.1994
156.92568
-11/2
21.6 Millisekunden (ms)
it
100%
157
Ho
67
0
156.928257
-7/2
12 Minuten 36 Sekunden
ε
100%
157
Er
68
0
156.931917
-3/2
18 Minuten 39 Sekunden
ε
100%
α
>0%
157m
Er
68
0.1554
156.932084
+9/2
76 Millisekunden (ms)
it
100%
157
Tm
69
0
156.936973
+1/2
3 Minuten 37.8 Sekunden
ε
100%
157
Yb
70
0
156.942628
-7/2
38.6 Sekunden
ε
99.5%
α
0.5%
157
Lu
71
0
156.950098
+1/2
6.8 Sekunden
ε
99%
α
1%
157m
Lu
71
0.026
156.950126
-11/2
4.79 Sekunden
ε
94%
α
6%
157
Hf
72
0
156.958396
-7/2
110 Millisekunden (ms)
α
86%
ε
14%
157
Ta
73
0
156.968193
+1/2
10.1 Millisekunden (ms)
α
96.6%
p
3.4%
157m
Ta
73
0.022
156.968216
-11/2
4.3 Millisekunden (ms)
α
100%
157m
Ta
73
1.589
156.969898
-25/2
1.7 Millisekunden (ms)
α
100%