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See also: list of Lead isotopes.
Half-life T½ = 1.4 × 1017 a respectively 4.41504 × 1024 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|---|---|---|---|
α | 200Hg | ? | 1.9685(11) MeV |
Direct parent isotopes are: 204Bi, 208Po, 204Tl.
Atomic Mass ma | Quantity | Half-life | Spin | |
---|---|---|---|---|
Lead Isotopic mixture | 207.2 u | 100 % | ||
Isotope 204Pb | 203.973044(8) u | 1.4(6) % | 1.4 × 1017 a | 0+ |
Isotope 206Pb | 205.974466(8) u | 24.1(30) % | stable | 0+ |
Isotope 207Pb | 206.975897(8) u | 22.1(50) % | stable | 1/2- |
Isotope 208Pb | 207.976653(8) u | 52.4(70) % | stable | 0+ |
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|---|---|---|
204m1Pb | 1274.13(5) keV | 265(6) ns | 4+ |
204m2Pb | 2185.88(8) keV | 66.93(10) min | 9- |
204m3Pb | 2264.42(6) keV | 0.45(+10-3) μs | 7- |
OZ | Isotone N = 122 | Isobar A = 204 |
---|---|---|
74 | 196W | |
75 | 197Re | |
76 | 198Os | |
77 | 199Ir | 204Ir |
78 | 200Pt | 204Pt |
79 | 201Au | 204Au |
80 | 202Hg | 204Hg |
81 | 203Tl | 204Tl |
82 | 204Pb | 204Pb |
83 | 205Bi | 204Bi |
84 | 206Po | 204Po |
85 | 207At | 204At |
86 | 208Rn | 204Rn |
87 | 209Fr | 204Fr |
88 | 210Ra | 204Ra |
89 | 211Ac | 204Ac |
90 | 212Th | |
91 | 213Pa | |
92 | 214U |
Last update: 2020-10-22
Perma link: https://www.chemlin.org/isotope/lead-204
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