Fr
Francium-223
Protons (Z)
87
Neutrons (N)
136
Mass number
223
Half-Life
22.0 m
Abundance
---
Mass
223.02 u
Mass Excess
18,382.3 keV
Spin
3/2-
Discovered
1939
Binding energy per nucleon
7,684 keV
Neutron separation energy
6,067 keV
Proton separation energy
5,279 keV
Decay Mode
Decay chain
- FrFrancium-223Z 87 · N 13622.0 m
- β⁻~100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%