Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 22
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
140
Te
52
0
139.93885
0
3 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
140
I
53
0
139.931
-4
860 Millisekunden (ms)
β
-
90.7%
nβ
-
9.3%
140
Xe
54
0
139.921642
0
13.6 Sekunden
β
-
100%
140
Cs
55
0
139.917283
-1
1 Minuten 3.7 Sekunden
β
-
100%
140
Ba
56
0
139.910605
0
12 Tage 18 Stunden
β
-
100%
140
La
57
0
139.909478
-3
1 Tage 16 Stunden 17 Minuten 7 Sekunden
β
-
100%
140
Ce
58
0
139.905439
0
88.45
stabil
140
Pr
59
0
139.909076
+1
3 Minuten 23.4 Sekunden
ε
100%
140m
Pr
59
0.1278
139.909213
+5
350 Nanosekunden (ns)
it
100%
140m
Pr
59
0.7637
139.909896
-7
3.1 Mikrosekunden (μs)
it
100%
140
Nd
60
0
139.909553
0
3 Tage 8 Stunden 52 Minuten
ε
100%
140m
Nd
60
2.2214
139.911938
-7
600 Mikrosekunden (μs)
it
100%
140
Pm
61
0
139.916042
+1
9.2 Sekunden
ε
100%
140m
Pm
61
0.42
139.916493
-8
5 Minuten 57 Sekunden
ε
100%
140
Sm
62
0
139.918996
0
14 Minuten 49.2 Sekunden
ε
100%
140
Eu
63
0
139.928089
+1
1.51 Sekunden
ε
100%
140m
Eu
63
0.21
139.928314
-5
125 Millisekunden (ms)
it
99%
ε
1%
140
Gd
64
0
139.933674
0
15.8 Sekunden
ε
100%
140
Tb
65
0
139.945805
+5
2.4 Sekunden
ε
99.74%
pε
0.74%
140
Dy
66
0
139.95401
0
700 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%
140m
Dy
66
2.1661
139.956336
-8
7 Mikrosekunden (μs)
it
100%
140
Ho
67
0
139.96854
+8
6 Mikrosekunden (μs)
p
100%