Properties | More Info | Isotopes | Allotropes | Spectra
Compounds | Reactions | Production
Atomic: M.A.C. | Reference
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Isotopes of Selenium
Notable Isotopes show graph
72Se [38 neutrons]
Abundance: synthetic
Half life: 8.4 days [ Electron Capture ]
Decay Energy: ? MeV
Decays to 72As.
Half life: 8.4 days [ Gamma Radiation ]
Decay Energy: 0.046 MeV
Decays to ?.
74Se [40 neutrons]
Abundance: 0.87%
Stable with 40 neutrons
75Se [41 neutrons]
Abundance: synthetic
Half life: 119.779 days [ Electron Capture ]
Decay Energy: ? MeV
Decays to 75As.
Half life: 119.779 days [ Gamma Radiation ]
Decay Energy: 0.264, 0.136, 0.279 MeV
Decays to ?.
76Se [42 neutrons]
Abundance: 9.36%
Stable with 42 neutrons
77Se [43 neutrons]
Abundance: 7.63%
Stable with 43
78Se [44 neutrons]
Abundance: 23.78%
Stable with 44 neutrons
79Se [45 neutrons]
Abundance: synthetic
Half life: 1.13 x 106 yeasr [ beta- ]
Decay Energy: 0.151 MeV
Decays to 79Br.
80Se [46 neutrons]
Abundance: 49.61%
Stable with 46 neutrons
82Se [48 neutrons]
Abundance: 8.73%
Half life: 1.08 x 1020 years [ Double beta decay ]
Decay Energy: 2.995 MeV
Decays to 82Kr.