Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 37
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
132
Cd
48
0
131.94555
0
97 Millisekunden (ms)
β
-
40%
nβ
-
60%
133
In
49
0
132.93781
+9/2
165 Millisekunden (ms)
β
-
15%
nβ
-
85%
133m
In
49
0.33
132.938164
-1/2
180 Millisekunden (ms)
β
-
>0%
it
>0%
134
Sn
50
0
133.928292
0
1.05 Sekunden
β
-
83%
nβ
-
17%
135
Sb
51
0
134.925166
+7/2
1.679 Sekunden
β
-
78%
nβ
-
22%
136
Te
52
0
135.920101
0
17.63 Sekunden
β
-
98.69%
nβ
-
1.31%
137
I
53
0
136.917872
+7/2
24.5 Sekunden
β
-
92.86%
nβ
-
7.14%
138
Xe
54
0
137.913954
0
14 Minuten 4.8 Sekunden
β
-
100%
139
Cs
55
0
138.913364
+7/2
9 Minuten 16.2 Sekunden
β
-
100%
140
Ba
56
0
139.910605
0
12 Tage 18 Stunden
β
-
100%
141
La
57
0
140.910962
+7/2
3 Stunden 55 Minuten 12 Sekunden
β
-
100%
142
Ce
58
0
141.909245
0
11.114
50 Billiarden Jahre
2β
-
100%
143
Pr
59
0
142.910817
+7/2
13 Tage 13 Stunden
β
-
100%
144
Nd
60
0
143.910087
0
23.8
2.29 Billiarden Jahre
α
100%
145
Pm
61
0
144.91275
+5/2
17 Jahre 255 Tage
ε
100%
α
2.8e-7%
146
Sm
62
0
145.913041
0
0.0000002
68 Millionen Jahre
α
100%
147
Eu
63
0
146.916746
+5/2
24 Tage 2 Stunden
ε
100%
α
2.2e-3%
148
Gd
64
0
147.918115
0
70 Jahre 328 Tage
α
100%
149
Tb
65
0
148.923247
+1/2
4 Stunden 7 Minuten 5 Sekunden
ε
83.3%
α
16.7%
149m
Tb
65
0.0358
148.923285
-11/2
4 Minuten 9.6 Sekunden
ε
99.98%
α
0.02%
150
Dy
66
0
149.925585
0
7 Minuten 10.2 Sekunden
ε
64%
α
36%
151
Ho
67
0
150.931688
-11/2
35.2 Sekunden
ε
78%
α
22%
151m
Ho
67
0.041
150.931732
+1/2
47.2 Sekunden
ε
20%
α
80%
152
Er
68
0
151.93505
0
10.3 Sekunden
α
90%
ε
10%
153
Tm
69
0
152.942013
-11/2
1.48 Sekunden
α
91%
ε
9%
153m
Tm
69
0.0432
152.942059
+1/2
2.5 Sekunden
α
92%
ε
8%
154
Yb
70
0
153.946394
0
409 Millisekunden (ms)
α
92.6%
ε
7.4%
155
Lu
71
0
154.954316
-11/2
68 Millisekunden (ms)
α
90%
ε
10%
155m
Lu
71
0.02
154.954338
+1/2
138 Millisekunden (ms)
α
76%
ε
24%
155m
Lu
71
1.781
154.956228
-25/2
35 Mikrosekunden (μs)
it
100%
156
Hf
72
0
155.959364
0
23 Millisekunden (ms)
α
100%
156m
Hf
72
1.959
155.961467
+8
480 Mikrosekunden (μs)
α
>0%
it
>0%
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%
158
W
74
0
157.974562
0
1.3 Millisekunden (ms)
α
100%
158
W
74
0
157.976589
+8
143 Mikrosekunden (μs)
α
>0%
it
>0%