Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 31
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
155
La
57
0
154.95835
+5/2
60 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
156
Ce
58
0
155.95126
0
150 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
157
Pr
59
0
156.94743
-5/2
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
158
Nd
60
0
157.9416
0
700 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
159
Pm
61
0
158.93897
-5/2
1.47 Sekunden
β
-
100%
160
Sm
62
0
159.93514
0
9.6 Sekunden
β
-
100%
161
Eu
63
0
160.93368
+5/2
26 Sekunden
β
-
100%
162
Gd
64
0
161.930985
0
8 Minuten 24 Sekunden
β
-
100%
163
Tb
65
0
162.930648
+3/2
19 Minuten 30 Sekunden
β
-
100%
164
Dy
66
0
163.929175
0
28.18
stabil
165
Ho
67
0
164.930322
-7/2
100
stabil
166
Er
68
0
165.930294
0
33.503
stabil
167
Tm
69
0
166.932852
+1/2
9 Tage 6 Stunden
ε
100%
167m
Tm
69
0.1795
166.933044
+7/2
1.2 Mikrosekunden (μs)
it
100%
167m
Tm
69
0.2928
166.933166
-7/2
900 Nanosekunden (ns)
it
100%
168
Yb
70
0
167.933897
0
0.13
200 Trilliarden Jahre
2ε
100%
169
Lu
71
0
168.937652
+7/2
1 Tage 10 Stunden 3 Minuten 36 Sekunden
ε
100%
169m
Lu
71
0.029
168.937683
-1/2
2 Minuten 40 Sekunden
it
100%
170
Hf
72
0
169.93961
0
16 Stunden 36.000000000007 Sekunden
ε
100%
171
Ta
73
0
170.944476
-5/2
23 Minuten 18 Sekunden
ε
100%
172
W
74
0
171.947292
0
6 Minuten 36 Sekunden
ε
100%
173
Re
75
0
172.953243
-5/2
1 Minuten 58.8 Sekunden
ε
100%
174
Os
76
0
173.957062
0
44 Sekunden
ε
99.98%
α
0.02%
175
Ir
77
0
174.99632
-5/2
9 Sekunden
ε
99.15%
ε
0.85%
176
Pt
78
0
175.974313
0
6.33 Sekunden
α
40%
ε
60%
177
Au
79
0
176.976865
+1/2
1.462 Sekunden
α
100%
ε
>0%
177m
Au
79
0.1579
176.977034
-11/2
1.18 Sekunden
α
100%
ε
>0%
178
Hg
80
0
177.982483
0
269 Millisekunden (ms)
α
70%
ε
30%
179
Tl
81
0
178.991089
+1/2
420 Millisekunden (ms)
α
100%
ε
>0%
179m
Tl
81
0.86
178.991905
-9/2
1.7 Millisekunden (ms)
it
100%
180
Pb
82
0
179.997918
0
4.5 Millisekunden (ms)
α
100%