Se
Selenium-78
Protons (Z)
34
Neutrons (N)
44
Mass number
78
Half-Life
Stable
Abundance
23.69%
Mass
77.917 u
Mass Excess
-77,025.95 keV
Spin
0+
Discovered
1922
Binding energy per nucleon
8,718 keV
Neutron separation energy
10,498 keV
Proton separation energy
10,399 keV
Decay Mode
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