Po
Polonium-199
Protons (Z)
84
Neutrons (N)
115
Mass number
199
Half-Life
5.47 m
Abundance
---
Mass
198.984 u
Mass Excess
-15,239.0 keV
Spin
3/2-
Discovered
1965
Binding energy per nucleon
7,818 keV
Neutron separation energy
7,837 keV
Proton separation energy
3,154 keV
Decay Mode
Decay chain
- PoPolonium-199Z 84 · N 1155.47 m
- β⁺92.5%
- β⁺100%
- β⁺100%
- β⁺100%