Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 51
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
126
Ag
47
0
125.9345
unbekannt
107 Millisekunden (ms)
β
-
>0%
nβ
-
>0%
127
Cd
48
0
126.926444
+3/2
370 Millisekunden (ms)
β
-
100%
128
In
49
0
127.920172
+3
840 Millisekunden (ms)
β
-
99.95%
nβ
-
0.05%
128m
In
49
0.2479
127.920438
-1
10 Millisekunden (ms)
β
-
>0%
it
>0%
128m
In
49
0.34
127.920537
-8
720 Millisekunden (ms)
β
-
99.95%
nβ
-
0.05%
129
Sn
50
0
128.913479
+3/2
2 Minuten 13.8 Sekunden
β
-
100%
129m
Sn
50
0.0352
128.913517
-11/2
6 Minuten 54 Sekunden
β
-
100%
it
1.5e-3%
130
Sb
51
0
129.911656
-8
39 Minuten 30 Sekunden
β
-
100%
130m
Sb
51
0.0048
129.911661
+4
6 Minuten 18 Sekunden
β
-
100%
131
Te
52
0
130.908524
+3/2
25 Minuten
β
-
100%
131m
Te
52
0.1823
130.90872
-11/2
1 Tage 9 Stunden 15 Minuten
β
-
74.1%
it
25.9%
131m
Te
52
1.94
130.910607
+23/2
93 Millisekunden (ms)
it
100%
132
I
53
0
131.907997
+4
2 Stunden 17 Minuten 42 Sekunden
β
-
100%
132m
I
53
0.12
131.908126
-8
1 Stunden 23 Minuten 13.2 Sekunden
β
-
100%
133
Xe
54
0
132.905911
+3/2
5 Tage 5 Stunden 49 Minuten
β
-
100%
133m
Xe
54
0.2332
132.906161
-11/2
2 Tage 4 Stunden 33 Minuten
it
100%
134
Cs
55
0
133.906718
+4
2 Jahre 23 Tage
ε
3e-4%
β
-
99.9997%
134m
Cs
55
0.1387
133.906867
-8
2 Stunden 54 Minuten 43 Sekunden
it
100%
135
Ba
56
0
134.905689
+3/2
6.592
stabil
135m
Ba
56
0.2682
134.905977
-11/2
1 Tage 4 Stunden 42 Minuten
it
100%
136
La
57
0
135.907636
+1
9 Minuten 52.2 Sekunden
ε
100%
136m
La
57
0.23
135.907883
+8
114 Millisekunden (ms)
it
100%
137
Ce
58
0
136.907806
+3/2
9 Stunden
ε
100%
137m
Ce
58
0.2543
136.908079
-11/2
1 Tage 10 Stunden 24 Minuten
it
99.21%
ε
0.79%
138
Pr
59
0
137.910755
+1
1 Minuten 27 Sekunden
ε
100%
138m
Pr
59
0.364
137.911145
-7
2 Stunden 7 Minuten 12 Sekunden
ε
100%
139
Nd
60
0
138.911978
+3/2
29 Minuten 42 Sekunden
ε
100%
139m
Nd
60
0.2312
138.912226
-11/2
5 Stunden 30 Minuten
ε
88.2%
it
11.8%
139m
Nd
60
2.5709
138.914738
unbekannt
150 Nanosekunden (ns)
it
100%
140
Pm
61
0
139.916042
+1
9.2 Sekunden
ε
100%
140m
Pm
61
0.42
139.916493
-8
5 Minuten 57 Sekunden
ε
100%
141
Sm
62
0
140.918476
+1/2
10 Minuten 12 Sekunden
ε
100%
141m
Sm
62
0.176
140.918665
-11/2
22 Minuten 36 Sekunden
ε
99.69%
it
0.31%
142
Eu
63
0
141.923436
+1
2.34 Sekunden
ε
100%
142m
Eu
63
0.46
141.92393
-8
1 Minuten 13.38 Sekunden
ε
100%
143
Gd
64
0
142.92675
+1/2
39 Sekunden
ε
100%
143m
Gd
64
0.1526
142.926914
-11/2
1 Minuten 50 Sekunden
ε
100%
144
Tb
65
0
143.933045
+1
1 Sekunden
ε
100%
144m
Tb
65
0.3969
143.933471
-6
4.25 Sekunden
it
66%
ε
34%
144m
Tb
65
0.4762
143.933556
-8
2.8 Mikrosekunden (μs)
it
100%
144m
Tb
65
0.5172
143.9336
+9
670 Nanosekunden (ns)
it
100%
144m
Tb
65
0.5445
143.93363
+10
200 Nanosekunden (ns)
it
100%
145
Dy
66
0
144.937425
+1/2
6 Sekunden
ε
50%
pε
50%
145m
Dy
66
0.1182
144.937552
-11/2
14.1 Sekunden
ε
50%
pε
50%
146
Ho
67
0
145.944639
+10
3.6 Sekunden
ε
100%
147
Er
68
0
146.94949
+1/2
2.5 Sekunden
ε
>0%
pε
>0%
147m
Er
68
0.1
146.949597
-11/2
2.5 Sekunden
ε
>0%
pε
>0%
148
Tm
69
0
147.95784
+1
700 Millisekunden (ms)
ε
100%
149
Yb
70
0
148.964039
+1/2
700 Millisekunden (ms)
pε
100%
150
Lu
71
0
149.973228
+2
43 Millisekunden (ms)
p
68%
ε
32%
150m
Lu
71
0.034
149.973264
+1
80 Mikrosekunden (μs)
it
100%