Ra
Radium-216
Protons (Z)
88
Neutrons (N)
128
Mass number
216
Half-Life
172.0 ns
Abundance
---
Mass
216.004 u
Mass Excess
3,291.0 keV
Spin
0+
Discovered
1972
Binding energy per nucleon
7,737 keV
Neutron separation energy
7,312 keV
Proton separation energy
4,316 keV
Decay Mode
Decay chain
- RaRadium-216Z 88 · N 128172.0 ns
- α~100%
- α100%
- α~100%