Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 23
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
19
Mg
12
0
19.034169
unbekannt
4 Pikosekunden (ps)
2p
100%
20
Mg
12
0
20.018862
0
908 Millisekunden (ms)
ε
73%
pε
27%
21
Mg
12
0
21.011713
+5/2
122 Millisekunden (ms)
ε
66.9%
pε
32.6%
αε
0.5%
22
Mg
12
0
21.999575
0
3.8755 Sekunden
ε
100%
23
Mg
12
0
22.994124
+5/2
11.317 Sekunden
ε
100%
23m
Mg
12
9.596
23.004426
+3/2
15 Femtosekunden (fs)
it
>0%
p
>0%
24
Mg
12
0
23.985042
0
78.99
stabil
25
Mg
12
0
24.985837
+5/2
10
stabil
26
Mg
12
0
25.982593
0
11.01
stabil
27
Mg
12
0
26.984341
+1/2
9 Minuten 27.5 Sekunden
β
-
100%
28
Mg
12
0
27.983877
0
20 Stunden 54 Minuten 54 Sekunden
β
-
100%
29
Mg
12
0
28.9886
+3/2
1.3 Sekunden
β
-
100%
30
Mg
12
0
29.990435
0
335 Millisekunden (ms)
β
-
100%
31
Mg
12
0
30.996546
+1/2
232 Millisekunden (ms)
β
-
98.3%
nβ
-
1.7%
32
Mg
12
0
31.998975
0
86 Millisekunden (ms)
β
-
94.5%
nβ
-
5.5%
33
Mg
12
0
33.005254
+3/2
90.5 Millisekunden (ms)
β
-
83%
nβ
-
17%
34
Mg
12
0
34.009456
0
20 Millisekunden (ms)
β
-
90%
nβ
-
10%
35
Mg
12
0
35.01734
-7/2
70 Millisekunden (ms)
β
-
48%
nβ
-
52%
36
Mg
12
0
36.023
0
3.9 Millisekunden (ms)
β
-
60%
nβ
-
40%
37
Mg
12
0
37.0314
-7/2
40 Millisekunden (ms)
β
-
100%
nβ
-
>0%
38
Mg
12
0
38.03757
0
1 Millisekunden (ms)
β
-
>0%
nβ
-
100%
39
Mg
12
0
39.046772
-7/2
unbekannt
nβ
-
100%
40
Mg
12
0
40.053929
0
1 Millisekunden (ms)
β
-
>0%
nβ
-
>0%