Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 21
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
142
Te
52
0
141.94908
0
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
142
I
53
0
141.94018
-2
200 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
142
Xe
54
0
141.92971
0
1.25 Sekunden
β
-
99.79%
nβ
-
0.79%
142
Cs
55
0
141.924299
0
1.684 Sekunden
β
-
99.91%
nβ
-
0.09%
142
Ba
56
0
141.916454
0
10 Minuten 36 Sekunden
β
-
100%
142
La
57
0
141.914079
-2
1 Stunden 31 Minuten 6 Sekunden
β
-
100%
142
Ce
58
0
141.909245
0
11.114
50 Billiarden Jahre
2β
-
100%
142
Pr
59
0
141.910046
-2
19 Stunden 7 Minuten 12 Sekunden
β
-
99.98%
ε
0.02%
142m
Pr
59
0.0037
141.91005
-5
14 Minuten 36 Sekunden
it
100%
142m
Pr
59
0.9114
141.911024
+9
61 Nanosekunden (ns)
it
100%
142
Nd
60
0
141.907724
0
27.13
stabil
142
Pm
61
0
141.912875
+1
40.5 Sekunden
ε
100%
142m
Pm
61
0.8832
141.913824
-8
2 Millisekunden (ms)
it
100%
142
Sm
62
0
141.915198
0
1 Stunden 12 Minuten 29.4 Sekunden
ε
100%
142
Eu
63
0
141.923436
+1
2.34 Sekunden
ε
100%
142m
Eu
63
0.46
141.92393
-8
1 Minuten 13.38 Sekunden
ε
100%
142
Gd
64
0
141.928116
0
1 Minuten 10.2 Sekunden
ε
100%
142
Tb
65
0
141.938744
+1
597 Millisekunden (ms)
ε
100%
pε
2.2e-3%
142m
Tb
65
0.2802
141.939044
-5
303 Millisekunden (ms)
it
100%
142
Dy
66
0
141.946366
0
2.3 Sekunden
ε
99.94%
pε
0.04%
142
Ho
67
0
141.95977
+6
400 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%