As
Arsenic-81
Protons (Z)
33
Neutrons (N)
48
Mass number
81
Half-Life
33.3 s
Abundance
---
Mass
80.922 u
Mass Excess
-72,533.3 keV
Spin
3/2-
Discovered
1960
Binding energy per nucleon
8,648 keV
Neutron separation energy
8,390 keV
Proton separation energy
10,287 keV
Decay Mode
- β⁻→Selenium-81100%
Decay chain
- AsArsenic-81Z 33 · N 4833.3 s
- β⁻100%
- β⁻100%