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Isotopes and half-life.svg
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20
40
60
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100
Z
20
40
60
80
100
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160
N
Z = N
10
−8
s
10
−6
s
10
−4
s
10
−2
s
1 s
100 s
10
4
s
10
6
s
1 yr
100 yr
10
4
yr
10
6
yr
10
8
yr
10
10
yr
10
12
yr
10
14
yr
no data
stable
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