Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 35
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
135
In
49
0
134.94933
+9/2
92 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
136
Sn
50
0
135.93934
0
250 Millisekunden (ms)
β
-
70%
nβ
-
30%
137
Sb
51
0
136.93531
+7/2
450 Millisekunden (ms)
β
-
51%
nβ
-
49%
138
Te
52
0
137.92922
0
1.4 Sekunden
β
-
93.7%
nβ
-
6.3%
139
I
53
0
138.9261
+7/2
2.28 Sekunden
β
-
90%
nβ
-
10%
140
Xe
54
0
139.921642
0
13.6 Sekunden
β
-
100%
141
Cs
55
0
140.920047
+7/2
24.84 Sekunden
β
-
100%
142
Ba
56
0
141.916454
0
10 Minuten 36 Sekunden
β
-
100%
143
La
57
0
142.916063
+7/2
14 Minuten 12 Sekunden
β
-
100%
144
Ce
58
0
143.913647
0
284 Tage 21 Stunden
β
-
100%
145
Pr
59
0
144.914513
+7/2
5 Stunden 59 Minuten 2 Sekunden
β
-
100%
146
Nd
60
0
145.913117
0
17.19
stabil
147
Pm
61
0
146.915139
+7/2
2 Jahre 227 Tage
β
-
100%
148
Sm
62
0
147.914823
0
11.24
7 Billiarden Jahre
α
100%
149
Eu
63
0
148.917932
+5/2
93 Tage 2 Stunden
ε
100%
150
Gd
64
0
149.918659
0
1.79 Millionen Jahre
α
100%
151
Tb
65
0
150.923103
+1/2
17 Stunden 36 Minuten 32 Sekunden
ε
99.9905%
α
9.5e-3%
151m
Tb
65
0.0995
150.92321
-11/2
25 Sekunden
it
93.4%
e
6.6%
152
Dy
66
0
151.924718
0
2 Stunden 22 Minuten 48 Sekunden
ε
99.9%
α
0.1%
153
Ho
67
0
152.930199
-11/2
2 Minuten 600 Millisekunden (ms)
ε
99.95%
α
0.05%
153m
Ho
67
0.0687
152.930273
+1/2
9 Minuten 18 Sekunden
ε
99.82%
α
0.18%
153m
Ho
67
2.772
152.933175
+31/2
229 Nanosekunden (ns)
it
100%
154
Er
68
0
153.932783
0
3 Minuten 43.8 Sekunden
ε
99.53%
α
0.47%
155
Tm
69
0
154.9392
-11/2
21.6 Sekunden
ε
99.11%
α
0.89%
155m
Tm
69
0.041
154.939244
+1/2
45 Sekunden
ε
98.5%
α
1.5%
156
Yb
70
0
155.942818
0
26.1 Sekunden
ε
90%
α
10%
157
Lu
71
0
156.950098
+1/2
6.8 Sekunden
ε
99%
α
1%
157m
Lu
71
0.026
156.950126
-11/2
4.79 Sekunden
ε
94%
α
6%
158
Hf
72
0
157.954799
0
2.85 Sekunden
e
55.7%
α
44.3%
159
Ta
73
0
158.963018
-1/2
830 Millisekunden (ms)
ε
66%
α
34%
159m
Ta
73
0.064
158.963087
-11/2
515 Millisekunden (ms)
α
55%
ε
45%
160
W
74
0
159.968479
0
91 Millisekunden (ms)
α
87%
ε
13%
161
Re
75
0
160.977589
+1/2
370 Mikrosekunden (μs)
p
100%
161m
Re
75
0.1238
160.977722
-11/2
15.6 Millisekunden (ms)
α
95.2%
p
4.8%
162
Os
76
0
161.98443
0
2.1 Millisekunden (ms)
α
99%
p
1%