Ac
Actinium-234
Protons (Z)
89
Neutrons (N)
145
Mass number
234
Half-Life
45.0 s
Abundance
---
Mass
234.048 u
Mass Excess
44,841.0 keV
Spin
(1+)
Discovered
1986
Binding energy per nucleon
7,582 keV
Neutron separation energy
4,538 keV
Proton separation energy
6,782 keV
Decay Mode
- β⁻→Thorium-234100%
Decay chain
- AcActinium-234Z 89 · N 14545.0 s
- β⁻100%
- β⁻100%
- β⁻100%
- α~100%
- α~100%
- α~100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%