Po
Polonium-209
Protons (Z)
84
Neutrons (N)
125
Mass number
209
Half-Life
124.0 y
Abundance
---
Mass
208.982 u
Mass Excess
-16,366.0 keV
Spin
1/2-
Discovered
1949
Binding energy per nucleon
7,835 keV
Neutron separation energy
6,968 keV
Proton separation energy
4,785 keV
Decay Mode
Decay chain
- PoPolonium-209Z 84 · N 125124.0 y
- α99.546%
- EC100%