Se

Selenium-77

Protons (Z)

34

Neutrons (N)

43

Mass number

77

Half-Life

Stable

Abundance

7.6%

Mass

76.92 u

Mass Excess

-74,599.5 keV

Spin

1/2-

Discovered

1922

Binding energy per nucleon

8,695 keV

Neutron separation energy

7,419 keV

Proton separation energy

9,597 keV

Decay Mode

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