Ra
Radium-220
Protons (Z)
88
Neutrons (N)
132
Mass number
220
Half-Life
18.1 ms
Abundance
---
Mass
220.011 u
Mass Excess
10,272.0 keV
Spin
0+
Discovered
1949
Binding energy per nucleon
7,712 keV
Neutron separation energy
7,193 keV
Proton separation energy
5,634 keV
Decay Mode
- α→Radon-216100%
Decay chain
- RaRadium-220Z 88 · N 13218.1 ms
- α100%
- α100%
- α100%