Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 34
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
151
Cs
55
0
150.96219
+3/2
50 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
152
Ba
56
0
151.95427
0
100 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
153
La
57
0
152.94962
+5/2
150 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
154
Ce
58
0
153.94342
0
300 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
155
Pr
59
0
154.94012
-5/2
1 Sekunden
β
-
>0%
nβ
-
>0%
156
Nd
60
0
155.935018
0
5.49 Sekunden
β
-
100%
156m
Nd
60
1.4325
155.936556
-5
135 Nanosekunden (ns)
it
100%
157
Pm
61
0
156.933039
-5/2
10.56 Sekunden
β
-
100%
158
Sm
62
0
157.929991
0
5 Minuten 18 Sekunden
β
-
100%
159
Eu
63
0
158.929089
+5/2
18 Minuten 6 Sekunden
β
-
100%
160
Gd
64
0
159.927054
0
21.86
31 Trillionen Jahre
2β
-
100%
161
Tb
65
0
160.92757
+3/2
6 Tage 21 Stunden 44 Minuten
β
-
100%
162
Dy
66
0
161.926799
0
25.51
stabil
163
Ho
67
0
162.928735
-7/2
4570 Jahre
ε
100%
163m
Ho
67
0.2979
162.929055
+1/2
1.09 Sekunden
it
100%
164
Er
68
0
163.9292
0
1.601
stabil
165
Tm
69
0
164.932436
+1/2
1 Tage 6 Stunden 3 Minuten 36 Sekunden
ε
100%
166
Yb
70
0
165.933883
0
2 Tage 8 Stunden 42 Minuten
ε
100%
167
Lu
71
0
166.93827
+7/2
51 Minuten 30 Sekunden
ε
100%
167m
Lu
71
0.03
166.938302
+1/2
1 Minuten 30 Sekunden
ε
>0%
it
>0%
168
Hf
72
0
167.940568
0
25 Minuten 57 Sekunden
ε
100%
169
Ta
73
0
168.946011
+5/2
4 Minuten 54 Sekunden
ε
100%
170
W
74
0
169.949229
0
2 Minuten 25.2 Sekunden
ε
100%
171
Re
75
0
170.955716
-9/2
15.2 Sekunden
ε
100%
172
Os
76
0
171.960023
0
19.2 Sekunden
ε
99.8%
α
0.2%
173
Ir
77
0
172.967502
+5/2
9 Sekunden
ε
95%
α
5%
173m
Ir
77
0.253
172.967773
-11/2
2.2 Sekunden
ε
93%
α
7%
174
Pt
78
0
173.972819
0
889 Millisekunden (ms)
α
76%
ε
24%
175
Au
79
0
174.981274
+1/2
100 Millisekunden (ms)
α
80%
ε
20%
175m
Au
79
0.2
174.981489
-11/2
135 Millisekunden (ms)
α
94%
ε
6%
176
Hg
80
0
175.987355
0
20.3 Millisekunden (ms)
α
94%
ε
6%
177
Tl
81
0
176.996427
+1/2
18 Millisekunden (ms)
α
73%
p
27%
177m
Tl
81
0.807
176.997294
-11/2
230 Mikrosekunden (μs)
it
100%
178
Pb
82
0
178.00383
0
230 Mikrosekunden (μs)
α
100%
ε
>0%