Fr
Francium-227
Protons (Z)
87
Neutrons (N)
140
Mass number
227
Half-Life
2.47 m
Abundance
---
Mass
227.032 u
Mass Excess
29,682.0 keV
Spin
1/2+
Discovered
1972
Binding energy per nucleon
7,641 keV
Neutron separation energy
5,910 keV
Proton separation energy
6,354 keV
Decay Mode
- β⁻→Radium-227100%
Decay chain
- FrFrancium-227Z 87 · N 1402.47 m
- β⁻100%
- β⁻100%
- β⁻98.62%
- α100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%