Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 48
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
144
I
53
0
143.94999
-1
300 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
145
Xe
54
0
144.94407
-3/2
188 Millisekunden (ms)
β
-
95%
nβ
-
5%
146
Cs
55
0
145.940289
-1
321 Millisekunden (ms)
β
-
95.8%
nβ
-
14.2%
147
Ba
56
0
146.934945
+3/2
893 Millisekunden (ms)
β
-
99.94%
nβ
-
0.06%
148
La
57
0
147.932229
-2
1.26 Sekunden
β
-
99.85%
nβ
-
0.15%
149
Ce
58
0
148.9284
-3/2
5.3 Sekunden
β
-
100%
150
Pr
59
0
149.926673
-1
6.19 Sekunden
β
-
100%
151
Nd
60
0
150.92383
+3/2
12 Minuten 26.4 Sekunden
β
-
100%
152
Pm
61
0
151.923497
+1
4 Minuten 7.2 Sekunden
β
-
100%
152m
Pm
61
0.15
151.923658
-4
7 Minuten 31.2 Sekunden
β
-
100%
152m
Pm
61
0.15
151.923658
+8
13 Minuten 48 Sekunden
β
-
100%
153
Sm
62
0
152.922098
+3/2
1 Tage 22 Stunden 17 Minuten 2 Sekunden
β
-
100%
153m
Sm
62
0.0984
152.922204
-11/2
10.6 Millisekunden (ms)
it
100%
154
Eu
63
0
153.92298
-3
8 Jahre 216 Tage
β
-
99.98%
ε
0.02%
154m
Eu
63
0.0682
153.923053
+2
2.2 Mikrosekunden (μs)
it
100%
154m
Eu
63
0.1453
153.923136
-8
46 Minuten 18 Sekunden
it
100%
155
Gd
64
0
154.922622
-3/2
14.8
stabil
155m
Gd
64
0.1211
154.922752
-11/2
32 Mikrosekunden (μs)
it
100%
156
Tb
65
0
155.924747
-3
5 Tage 8 Stunden 23 Minuten
ε
100%
156m
Tb
65
0.0496
155.9248
-7
1 Tage 24 Minuten
it
100%
156m
Tb
65
0.0884
155.924842
0
5 Stunden 18 Minuten
it
100%
157
Dy
66
0
156.925466
-3/2
8 Stunden 8 Minuten 24 Sekunden
ε
100%
157m
Dy
66
0.162
156.92564
+9/2
1.3 Mikrosekunden (μs)
it
100%
157m
Dy
66
0.1994
156.92568
-11/2
21.6 Millisekunden (ms)
it
100%
158
Ho
67
0
157.928941
+5
11 Minuten 18 Sekunden
ε
100%
158m
Ho
67
0.0672
157.929013
-2
28 Minuten
it
81%
ε
19%
158m
Ho
67
0.18
157.929134
+9
21 Minuten 18 Sekunden
ε
93%
it
7%
159
Er
68
0
158.930684
-3/2
36 Minuten
ε
100%
159m
Er
68
0.1826
158.930881
+9/2
337 Nanosekunden (ns)
it
100%
159m
Er
68
0.4291
158.931145
-11/2
590 Nanosekunden (ns)
it
100%
160
Tm
69
0
159.935263
-1
9 Minuten 24 Sekunden
ε
100%
160m
Tm
69
0.07
159.935338
+5
1 Minuten 14.5 Sekunden
it
85%
ε
15%
160m
Tm
69
0.0928
159.935362
+8
200 Nanosekunden (ns)
it
100%
161
Yb
70
0
160.937902
-3/2
4 Minuten 12 Sekunden
ε
100%
162
Lu
71
0
161.943278
-1
1 Minuten 22.2 Sekunden
ε
100%
162m
Lu
71
0.12
161.943407
-4
1 Minuten 30 Sekunden
ε
100%
162m
Lu
71
0.3
161.9436
unbekannt
1 Minuten 54 Sekunden
ε
100%
163
Hf
72
0
162.947089
-3/2
40 Sekunden
ε
100%
α
5e-5%
164
Ta
73
0
163.953535
+3
14.2 Sekunden
ε
100%
165
W
74
0
164.95828
-5/2
5.1 Sekunden
ε
99.9%
α
0.1%
166
Re
75
0
165.965808
-2
2.25 Sekunden
ε
80%
α
20%
167
Os
76
0
166.971548
-7/2
810 Millisekunden (ms)
α
57%
ε
43%
168
Ir
77
0
167.979881
unbekannt
161 Millisekunden (ms)
α
82%
ε
18%
168m
Ir
77
0.05
167.979934
unbekannt
125 Millisekunden (ms)
α
>0%
ε
>0%
it
>0%
169
Pt
78
0
168.986715
-7/2
7 Millisekunden (ms)
α
100%
170
Au
79
0
169.996122
-2
286 Mikrosekunden (μs)
α
11%
p
89%
170m
Au
79
0.275
169.996418
+9
630 Mikrosekunden (μs)
α
>0%
p
>0%
it
>0%
171
Hg
80
0
171.00376
-3/2
59 Mikrosekunden (μs)
α
100%
p
>0%