Ac
Actinium-216
Protons (Z)
89
Neutrons (N)
127
Mass number
216
Half-Life
440.0 µs
Abundance
---
Mass
216.009 u
Mass Excess
8,150.0 keV
Spin
(1-)
Discovered
1967
Binding energy per nucleon
7,711 keV
Neutron separation energy
5,952 keV
Proton separation energy
1,671 keV
Decay Mode
Decay chain
- AcActinium-216Z 89 · N 127440.0 µs
- α100%
- β⁺57%
- α100%
- α~100%