Se
Selenium-80
Protons (Z)
34
Neutrons (N)
46
Mass number
80
Half-Life
Stable
Abundance
49.8%
Mass
79.917 u
Mass Excess
-77,759.5 keV
Spin
0+
Discovered
1922
Binding energy per nucleon
8,711 keV
Neutron separation energy
9,913 keV
Proton separation energy
11,412 keV
Decay Mode
- β⁻