Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 31
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
142
Te
52
0
141.94908
0
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
143
I
53
0
142.94456
+7/2
150 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
144
Xe
54
0
143.93851
0
388 Millisekunden (ms)
β
-
97%
nβ
-
3%
145
Cs
55
0
144.935527
+3/2
587 Millisekunden (ms)
β
-
85.3%
nβ
-
14.7%
146
Ba
56
0
145.93022
0
2.22 Sekunden
β
-
100%
147
La
57
0
146.928237
+5/2
4.015 Sekunden
β
-
99.96%
nβ
-
0.04%
148
Ce
58
0
147.924432
0
56 Sekunden
β
-
100%
149
Pr
59
0
148.923718
+5/2
2 Minuten 15.6 Sekunden
β
-
100%
150
Nd
60
0
149.920891
0
5.64
7.9 Trillionen Jahre
2β
-
100%
151
Pm
61
0
150.921207
+5/2
1 Tage 4 Stunden 24 Minuten
β
-
100%
152
Sm
62
0
151.919733
0
26.75
stabil
153
Eu
63
0
152.921225
+5/2
52.19
stabil
154
Gd
64
0
153.920866
0
2.18
stabil
155
Tb
65
0
154.923505
+3/2
5 Tage 7 Stunden 40 Minuten
ε
100%
156
Dy
66
0
155.924283
0
0.06
1000 Billiarden Jahre
α
100%
157
Ho
67
0
156.928257
-7/2
12 Minuten 36 Sekunden
ε
100%
158
Er
68
0
157.929894
0
2 Stunden 17 Minuten 24 Sekunden
ε
100%
159
Tm
69
0
158.934975
+5/2
9 Minuten 7.8000000000001 Sekunden
ε
100%
160
Yb
70
0
159.937552
0
4 Minuten 48 Sekunden
ε
100%
161
Lu
71
0
160.943572
+1/2
1 Minuten 17 Sekunden
ε
100%
161m
Lu
71
0.1665
160.943751
-9/2
7.3 Millisekunden (ms)
it
100%
162
Hf
72
0
161.947211
0
39.4 Sekunden
ε
99.992%
α
8e-3%
163
Ta
73
0
162.95433
+1/2
10.6 Sekunden
ε
99.8%
α
0.2%
164
W
74
0
163.958954
0
6.3 Sekunden
ε
96.2%
α
3.8%
165
Re
75
0
164.967089
+1/2
1 Sekunden
ε
>0%
α
>0%
165m
Re
75
0.048
164.96714
-11/2
2.1 Sekunden
ε
87%
α
13%
166
Os
76
0
165.972691
0
199 Millisekunden (ms)
α
82%
ε
18%
167
Ir
77
0
166.981665
+1/2
35.2 Millisekunden (ms)
α
48%
p
32%
ε
20%
167m
Ir
77
0.1753
166.981853
-11/2
25.7 Millisekunden (ms)
α
80%
ε
20%
p
0.4%
168
Pt
78
0
167.988151
0
2.1 Millisekunden (ms)
α
100%
169
Au
79
0
168.998081
+1/2
150 Mikrosekunden (μs)
p
>0%
α
>0%