Page 1275 - Chemistry--atom first
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Appendix M 1265
Appendix M
Half-Lives For Several Radioactive
Isotopes
Half-Lives for Several Radioactive Isotopes
Isotope
Half-Life[1]
Type of Emission[2]
Isotope
Half-Life[3]
Type of Emission[4]
5730 y
5.01 d
9.97 m
60.55 m
4.1 10−22 s
138.4 d
15.00 h
3 10−7s
14.29 d
0.15 s
1.27 109 y
3.05 m
0.08 s
1.0 10−4 s
2.6 106 y
1.6 s
5.27 y
55.6 s
4.7 1010 y
3.82 d
29 y
3.66 d
5.1 1015 y
1600 y
8.040 d
5.75 y
5 1015y
6.13 h
3.07 m
1.913 y
22.3 y
1.4 1010 y
10.6 h
22 m
26.8 m
Table M1
1. y = years, d = days, h = hours, m = minutes, s = seconds
2. E.C. = electron capture, S.F. = Spontaneous fission
3. y = years, d = days, h = hours, m = minutes, s = seconds
4. E.C. = electron capture, S.F. = Spontaneous fission
