Cu
Copper-81
Protons (Z)
29
Neutrons (N)
52
Mass number
81
Half-Life
73.2 ms
Abundance
---
Mass
80.966 u
Mass Excess
-31,910.0 keV
Spin
(5/2-)
Discovered
2010
Binding energy per nucleon
8,185 keV
Neutron separation energy
3,301 keV
Proton separation energy
15,959 keV
Decay Mode
Decay chain
- CuCopper-81Z 29 · N 5273.2 ms
- β⁻n81%
- β⁻98.64%
- β⁻99.14%
- β⁻100%
- β⁻100%