Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 34
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
134
In
49
0
133.94415
-4
140 Millisekunden (ms)
β
-
35%
nβ
-
65%
135
Sn
50
0
134.93473
-7/2
530 Millisekunden (ms)
β
-
79%
nβ
-
21%
136
Sb
51
0
135.93035
-1
923 Millisekunden (ms)
β
-
83.7%
nβ
-
16.3%
136m
Sb
51
0.173
135.930535
-6
570 Nanosekunden (ns)
it
100%
137
Te
52
0
136.925323
-7/2
2.49 Sekunden
β
-
96.01%
nβ
-
2.99%
138
I
53
0
137.92235
-2
6.23 Sekunden
β
-
94.44%
nβ
-
5.56%
139
Xe
54
0
138.918794
-3/2
39.68 Sekunden
β
-
100%
140
Cs
55
0
139.917283
-1
1 Minuten 3.7 Sekunden
β
-
100%
141
Ba
56
0
140.914411
-3/2
18 Minuten 16.2 Sekunden
β
-
100%
142
La
57
0
141.914079
-2
1 Stunden 31 Minuten 6 Sekunden
β
-
100%
143
Ce
58
0
142.912386
-3/2
33.03 Sekunden
β
-
100%
144
Pr
59
0
143.913305
0
17 Minuten 16.8 Sekunden
β
-
100%
144m
Pr
59
0.059
143.913369
-3
7 Minuten 12 Sekunden
it
99.93%
β
-
0.07%
145
Nd
60
0
144.912574
-7/2
8.3
stabil
146
Pm
61
0
145.914696
-3
5 Jahre 193 Tage
ε
66%
β
-
34%
147
Sm
62
0
146.914898
-7/2
14.99
106 Milliarden Jahre
α
100%
148
Eu
63
0
147.918086
-5
54 Tage 12 Stunden
ε
100%
α
9.4e-7%
149
Gd
64
0
148.919341
-7/2
9 Tage 6 Stunden 43 Minuten
ε
100%
α
4.3e-4%
150
Tb
65
0
149.92366
-2
3 Stunden 28 Minuten 48 Sekunden
ε
99.96%
α
0.04%
150m
Tb
65
0.474
149.924168
+9
5 Minuten 48 Sekunden
ε
100%
151
Dy
66
0
150.926185
-7/2
17 Minuten 54 Sekunden
ε
94.4%
α
5.6%
152
Ho
67
0
151.931714
-2
2 Minuten 41.8 Sekunden
ε
88%
α
12%
152m
Ho
67
0.16
151.931885
+9
50 Sekunden
ε
89.2%
α
10.8%
153
Er
68
0
152.935065
-7/2
37.1 Sekunden
ε
47%
α
53%
154
Tm
69
0
153.941568
-2
8.1 Sekunden
α
54%
ε
46%
154m
Tm
69
0.07
153.941643
+9
3.3 Sekunden
α
58%
ε
42%
it
>0%
155
Yb
70
0
154.945782
-7/2
1.793 Sekunden
α
89%
ε
11%
156
Lu
71
0
155.953034
-2
494 Millisekunden (ms)
α
95%
ε
5%
156m
Lu
71
0.22
155.95327
+9
198 Millisekunden (ms)
α
100%
157
Hf
72
0
156.958396
-7/2
110 Millisekunden (ms)
α
86%
ε
14%
158
Ta
73
0
157.9667
-2
55 Millisekunden (ms)
α
91%
ε
9%
158m
Ta
73
0.141
157.966851
+9
36.7 Millisekunden (ms)
α
95%
ε
5%
159
W
74
0
158.972918
-7/2
7.3 Millisekunden (ms)
α
99.9%
ε
0.1%
160
Re
75
0
159.982115
-2
820 Mikrosekunden (μs)
α
9%
p
91%