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Ga
Gallium
29 known isotopes (2 stable,
27 radioactive)
59Ga
Mass
58.963757 u
Abundance —
Half-life 43 nanoseconds
Spin/Parity —
Decay Mode(s) Unknown
60Ga
Mass
59.957498 u
Abundance —
Half-life 70 milliseconds
Spin/Parity (2+)
Decay Mode(s) EC/β⁺ (100%), β⁺p (1.6%), β⁺α (0.023%)
61Ga
Mass
60.949399 u
Abundance —
Half-life 167 milliseconds
Spin/Parity 3/2-
Decay Mode(s) EC/β⁺ (100%), ECP (0.25%)
62Ga
Mass
61.944190 u
Abundance —
Half-life 116.121 milliseconds
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
63Ga
Mass
62.939294 u
Abundance —
Half-life 32.4 seconds
Spin/Parity 3/2-
Decay Mode(s) EC/β⁺ (100%)
64Ga
Mass
63.936840 u
Abundance —
Half-life 2.627 m
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
65Ga
Mass
64.932734 u
Abundance —
Half-life 15.2 m
Spin/Parity 3/2-
Decay Mode(s) EC/β⁺ (100%)
66Ga
Mass
65.931590 u
Abundance —
Half-life 9.49 h
Spin/Parity 0+
Decay Mode(s) EC/β⁺ (100%)
67Ga
Mass
66.928202 u
Abundance —
Half-life 3.2617 d
Spin/Parity 3/2-
Decay Mode(s) Electron capture (100%)
68Ga
Mass
67.927980 u
Abundance —
Half-life 67.71 m
Spin/Parity 1+
Decay Mode(s) EC/β⁺ (100%)
69Ga Stable
Mass
68.925574 u
Abundance 60.1080%
Half-life Stable
Spin/Parity 3/2-
Decay Mode(s) —
70Ga
Mass
69.926022 u
Abundance —
Half-life 21.14 m
Spin/Parity 1+
Decay Mode(s) β⁻ (99.59%), Electron capture (0.41%)
71Ga Stable
Mass
70.924703 u
Abundance 39.8920%
Half-life Stable
Spin/Parity 3/2-
Decay Mode(s) —
72Ga
Mass
71.926367 u
Abundance —
Half-life 14.10 h
Spin/Parity 3-
Decay Mode(s) β⁻ (100%)
73Ga
Mass
72.925175 u
Abundance —
Half-life 4.86 h
Spin/Parity 1/2-
Decay Mode(s) β⁻ (100%)
74Ga
Mass
73.926946 u
Abundance —
Half-life 8.12 m
Spin/Parity (3-)
Decay Mode(s) β⁻ (100%)
75Ga
Mass
74.926504 u
Abundance —
Half-life 126 seconds
Spin/Parity 3/2-
Decay Mode(s) β⁻ (100%)
76Ga
Mass
75.928828 u
Abundance —
Half-life 32.6 seconds
Spin/Parity (2+ 3+)
Decay Mode(s) β⁻ (100%)
77Ga
Mass
76.929154 u
Abundance —
Half-life 13.2 seconds
Spin/Parity 3/2(-)
Decay Mode(s) β⁻ (100%)
78Ga
Mass
77.931611 u
Abundance —
Half-life 5.09 seconds
Spin/Parity (3+)
Decay Mode(s) β⁻ (100%)
79Ga
Mass
78.932852 u
Abundance —
Half-life 2.848 seconds
Spin/Parity 3/2(-)
Decay Mode(s) β⁻ (100%), β⁻n (0.089%)
80Ga
Mass
79.936421 u
Abundance —
Half-life 1.9 seconds
Spin/Parity 6(-)
Decay Mode(s) β⁻ (100%), β⁻n (0.86%)
81Ga
Mass
80.938134 u
Abundance —
Half-life 1.217 seconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%), β⁻n (11.9%)
82Ga
Mass
81.943177 u
Abundance —
Half-life 0.600 seconds
Spin/Parity (2-)
Decay Mode(s) β⁻ (100%), β⁻n (22.2%)
83Ga
Mass
82.947120 u
Abundance —
Half-life 308.1 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%), β⁻n (62.8%)
84Ga
Mass
83.952663 u
Abundance —
Half-life 95.2 milliseconds
Spin/Parity (0-)
Decay Mode(s) β⁻ (100%), β⁻n (46%), β⁻2n (1.6%)
85Ga
Mass
84.957333 u
Abundance —
Half-life 92 milliseconds
Spin/Parity (5/2-)
Decay Mode(s) β⁻ (100%), β⁻n (35%)
86Ga
Mass
85.963757 u
Abundance —
Half-life 43 milliseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%), β⁻n (60%), β⁻2n (20%)
87Ga
Mass
86.969007 u
Abundance —
Half-life 634 nanoseconds
Spin/Parity —
Decay Mode(s) β⁻ (100%)
Decay mode abbreviations:
β⁻ = Beta minus decay, β⁺ = Beta plus decay, EC = Electron capture, α = Alpha decay
n = Neutron emission, p = Proton emission, SF = Spontaneous fission, IT = Isomeric transition
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