Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 23
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
146
Xe
54
0
145.94775
0
146 Millisekunden (ms)
β
-
93.1%
nβ
-
6.9%
146
Cs
55
0
145.940289
-1
321 Millisekunden (ms)
β
-
95.8%
nβ
-
14.2%
146
Ba
56
0
145.93022
0
2.22 Sekunden
β
-
100%
146
La
57
0
145.925794
-2
6.27 Sekunden
β
-
100%
146m
La
57
0.13
145.925933
-6
10 Sekunden
β
-
100%
146
Ce
58
0
145.918759
0
13 Minuten 31.2 Sekunden
β
-
100%
146
Pr
59
0
145.917644
-2
24 Minuten 9 Sekunden
β
-
100%
146
Nd
60
0
145.913117
0
17.19
stabil
146
Pm
61
0
145.914696
-3
5 Jahre 193 Tage
ε
66%
β
-
34%
146
Sm
62
0
145.913041
0
0.0000002
68 Millionen Jahre
α
100%
146
Eu
63
0
145.917206
-4
4 Tage 14 Stunden 38 Minuten
ε
100%
146m
Eu
63
0.6664
145.917921
+9
235 Mikrosekunden (μs)
it
100%
146
Gd
64
0
145.918311
0
48 Tage 6 Stunden
ε
100%
146
Tb
65
0
145.927247
+1
8 Sekunden
ε
100%
146m
Tb
65
0.15
145.927408
-5
24.1 Sekunden
ε
100%
146m
Tb
65
0.93
145.928245
+10
1.2 Millisekunden (ms)
it
100%
146
Dy
66
0
145.932845
0
29 Sekunden
ε
100%
146m
Dy
66
2.9357
145.935997
+10
150 Millisekunden (ms)
it
100%
146
Ho
67
0
145.944639
+10
3.6 Sekunden
ε
100%
146
Er
68
0
145.952
0
1.7 Sekunden
pε
100%
146
Tm
69
0
145.966425
-5
80 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%
146m
Tm
69
0.076
145.966506
+10
72 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%
146m
Tm
69
0.18
145.966618
+8
200 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%