As

Arsenic-77

Protons (Z)

33

Neutrons (N)

44

Mass number

77

Half-Life

1.62 d

Abundance

---

Mass

76.921 u

Mass Excess

-73,916.3 keV

Spin

3/2-

Discovered

1951

Binding energy per nucleon

8,696 keV

Neutron separation energy

9,696 keV

Proton separation energy

7,992 keV

Decay Mode

β⁻Selenium-77100%

Decay chain

Arsenic-77Z 33 · N 441.62 d
β⁻100%