Po
Polonium-197m
Protons (Z)
84
Neutrons (N)
113
Mass number
197
Half-Life
25.8 s
Abundance
---
Mass
196.986 u
Mass Excess
-13,197.0 keV
Spin
13/2+
Discovered
1967
Binding energy per nucleon
7,805 keV
Neutron separation energy
7,799 keV
Proton separation energy
2,477 keV
Decay Mode
Decay chain
- PoPolonium-197Z 84 · N 11325.8 s
- α84%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%