Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 38
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
147
Xe
54
0
146.95356
-3/2
100 Millisekunden (ms)
β
-
92%
nβ
-
8%
148
Cs
55
0
147.949221
-1
146 Millisekunden (ms)
β
-
74.9%
nβ
-
25.1%
149
Ba
56
0
148.94258
-3/2
344 Millisekunden (ms)
β
-
99.57%
nβ
-
0.43%
150
La
57
0
149.93877
-3
510 Millisekunden (ms)
β
-
97.3%
nβ
-
2.7%
151
Ce
58
0
150.933977
+5/2
1.76 Sekunden
β
-
100%
151m
Ce
58
0.1
150.934084
-7/2
1.02 Sekunden
β
-
100%
152
Pr
59
0
151.931499
-4
3.63 Sekunden
β
-
100%
153
Nd
60
0
152.927699
-3/2
31.6 Sekunden
β
-
100%
154
Pm
61
0
153.926464
+1
1 Minuten 43.8 Sekunden
β
-
100%
154m
Pm
61
0.12
153.926593
-3
2 Minuten 40.8 Sekunden
it
40%
β
-
60%
155
Sm
62
0
154.92464
-3/2
22 Minuten 18 Sekunden
β
-
100%
156
Eu
63
0
155.924752
0
15 Tage 4 Stunden
β
-
100%
157
Gd
64
0
156.92396
-3/2
15.65
stabil
157m
Gd
64
0.4266
156.924418
-11/2
18.5 Mikrosekunden (μs)
it
100%
158
Tb
65
0
157.925413
-3
180 Jahre
ε
83.4%
β
-
16.6%
158m
Tb
65
0.1103
157.925532
0
10.7 Sekunden
it
99.39%
ε
0.01%
β
-
0.6%
158m
Tb
65
0.3884
157.92583
-7
40 Mikrosekunden (μs)
it
100%
159
Dy
66
0
158.925739
-3/2
144 Tage 9 Stunden
ε
100%
159m
Dy
66
0.3528
158.926118
-11/2
122 Mikrosekunden (μs)
it
100%
160
Ho
67
0
159.928729
+5
25 Minuten 36 Sekunden
ε
100%
160m
Ho
67
0.06
159.928794
-2
5 Stunden 1 Minuten 12 Sekunden
it
73%
ε
27%
160m
Ho
67
0.1696
159.928912
+9
3 Sekunden
it
100%
161
Er
68
0
160.929996
-3/2
3 Stunden 12 Minuten 36 Sekunden
ε
100%
161m
Er
68
0.3964
160.930422
-11/2
7.5 Mikrosekunden (μs)
it
100%
162
Tm
69
0
161.933995
-1
21 Minuten 42 Sekunden
ε
100%
162m
Tm
69
0.13
161.934135
+5
24.3 Sekunden
it
81%
ε
19%
163
Yb
70
0
162.936334
-3/2
11 Minuten 3 Sekunden
ε
100%
164
Lu
71
0
163.941339
-1
3 Minuten 8.4 Sekunden
ε
100%
165
Hf
72
0
164.944567
-5/2
1 Minuten 16 Sekunden
ε
100%
166
Ta
73
0
165.950513
+2
34.4 Sekunden
ε
100%
167
W
74
0
166.954816
-7/2
19.9 Sekunden
ε
99.96%
α
0.04%
168
Re
75
0
167.961573
+6
4.4 Sekunden
ε
99.995%
α
5e-3%
169
Os
76
0
168.96702
-5/2
3.43 Sekunden
ε
86%
α
14%
170
Ir
77
0
169.974965
-3
870 Millisekunden (ms)
ε
94.8%
α
5.2%
170m
Ir
77
0.27
169.975255
+8
811 Millisekunden (ms)
ε
62%
α
38%
it
>0%
171
Pt
78
0
170.981245
-3/2
51 Millisekunden (ms)
α
98%
ε
2%
172
Au
79
0
171.990035
+9
6.3 Millisekunden (ms)
α
98%
p
2%
173
Hg
80
0
172.997242
-3/2
600 Mikrosekunden (μs)
α
100%
p
>0%