Ac
Actinium-223
Protons (Z)
89
Neutrons (N)
134
Mass number
223
Half-Life
2.1 m
Abundance
---
Mass
223.019 u
Mass Excess
17,825.0 keV
Spin
(5/2-)
Discovered
1948
Binding energy per nucleon
7,679 keV
Neutron separation energy
6,868 keV
Proton separation energy
3,784 keV
Decay Mode
Decay chain
- AcActinium-223Z 89 · N 1342.1 m
- α99%
- α100%
- α100%
- α~100%
- β⁻100%