Po
Polonium-222
Protons (Z)
84
Neutrons (N)
138
Mass number
222
Half-Life
9.1 m
Abundance
---
Mass
222.024 u
Mass Excess
22,490.0 keV
Spin
0+
Discovered
2010
Binding energy per nucleon
7,674 keV
Neutron separation energy
5,355 keV
Proton separation energy
8,999 keV
Decay Mode
- β⁻→Astatine-222100%
Decay chain
- PoPolonium-222Z 84 · N 1389.1 m
- β⁻100%
- β⁻100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%