Ra
Radium-218
Protons (Z)
88
Neutrons (N)
130
Mass number
218
Half-Life
25.91 µs
Abundance
---
Mass
218.007 u
Mass Excess
6,646.0 keV
Spin
0+
Discovered
1970
Binding energy per nucleon
7,725 keV
Neutron separation energy
7,315 keV
Proton separation energy
4,958 keV
Decay Mode
- α→Radon-214100%
Decay chain
- RaRadium-218Z 88 · N 13025.91 µs
- α100%
- α100%
- α100%