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Chemistry: Atoms First 2e

M | Half-Lives for Several Radioactive Isotopes

Chemistry: Atoms First 2eM | Half-Lives for Several Radioactive Isotopes

Half-Lives for Several Radioactive Isotopes
Isotope Half-Life1 Type of Emission2 Isotope Half-Life3 Type of Emission4
146C 5730 y (β) 21083Bi 5.01 d (β)
137N 9.97 m (β+) 21283Bi 60.55 m (αorβ)
159F 4.1 × 10−22 s (p) 21084Po 138.4 d (α)
2411Na 15.00 h (β) 21284Po 3 × 10−7 s (α)
3215P 14.29 d (β) 21684Po 0.15 s (α)
4019K 1.27 × 109 y (βorE.C.) 21884Po 3.05 m (α)
4926Fe 0.08 s (β+) 21585At 1.0 × 10−4 s (α)
6026Fe 2.6 × 106 y (β) 21885At 1.6 s (α)
6027Co 5.27 y (β) 22086Rn 55.6 s (α)
8737Rb 4.7 × 1010 y (β) 22286Rn 3.82 d (α)
9038Sr 29 y (β) 22488Ra 3.66 d (α)
11549In 5.1 × 1015 y (β) 22688Ra 1600 y (α)
13153I 8.040 d (β) 22888Ra 5.75 y (β)
14258Ce 5 × 1015 y (α) 22889Ac 6.13 h (β)
20881Tl 3.07 m (β) 22890Th 1.913 y (α)
21082Pb 22.3 y (β) 23290Th 1.4 × 1010 y (α)
21282Pb 10.6 h (β) 23390Th 22 m (β)
21482Pb 26.8 m (β) 23490Th 24.10 d (β)
20683Bi 6.243 d (E.C.) 23391Pa 27 d (β)
23392U 1.59 × 105 y (α) 24296Cm 162.8 d (α)
23492U 2.45 × 105 y (α) 24397Bk 4.5 h (αorE.C.)
23592U 7.03 × 108 y (α) 25399Es 20.47 d (α)
23892U 4.47 × 109 y (α) 254100Fm 3.24 h (αorS.F.)
23992U 23.54 m (β) 255100Fm 20.1 h (α)
23993Np 2.3 d (β) 256101Md 76 m (αorE.C.)
23994Pu 2.407 × 104 y (α) 254102No 55 s (α)
23994Pu 6.54 × 103 y (α) 257103Lr 0.65 s (α)
24194Pu 14.4 y (αorβ) 260105Ha 1.5 s (αorS.F.)
24195Am 432.2 y (α) 263106Sg 0.8 s (αorS.F.)
Table M1

Footnotes

  • 1y = years, d = days, h = hours, m = minutes, s = seconds
  • 2E.C. = electron capture, S.F. = Spontaneous fission
  • 3y = years, d = days, h = hours, m = minutes, s = seconds
  • 4E.C. = electron capture, S.F. = Spontaneous fission
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