Ac
Actinium-205
Protons (Z)
89
Neutrons (N)
116
Mass number
205
Half-Life
80.0 ms
Abundance
---
Mass
205.015 u
Mass Excess
14,110.0 keV
Spin
9/2-
Discovered
2014
Binding energy per nucleon
7,663 keV
Neutron separation energy
---
Proton separation energy
-760 keV
Decay Mode
Decay chain
- AcActinium-205Z 89 · N 11680.0 ms
- α100%
- α100%
- α96.1%
- β⁺96.5%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%