Ra
Radium-227
Protons (Z)
88
Neutrons (N)
139
Mass number
227
Half-Life
42.2 m
Abundance
---
Mass
227.029 u
Mass Excess
27,177.5 keV
Spin
3/2+
Discovered
1953
Binding energy per nucleon
7,648 keV
Neutron separation energy
4,561 keV
Proton separation energy
7,632 keV
Decay Mode
- β⁻→Actinium-227100%
Decay chain
- RaRadium-227Z 88 · N 13942.2 m
- β⁻100%
- β⁻98.62%
- α100%
- α~100%
- α100%
- α~100%
- β⁻100%
- α~100%
- β⁻100%