Ac
Actinium-215n
Protons (Z)
89
Neutrons (N)
126
Mass number
215
Half-Life
335.0 ns
Abundance
---
Mass
215.009 u
Mass Excess
8,520.0 keV
Spin
(29/2+)
Discovered
1983
Binding energy per nucleon
7,708 keV
Neutron separation energy
5,984 keV
Proton separation energy
-1,138 keV
Decay Mode
- γ→Actinium-215100%
Decay chain
- AcActinium-215Z 89 · N 126335.0 ns
- γ100%
- α~100%
- α87%
- β⁺90%
- β⁺~100%
- β⁺100%