Ac
Actinium-218m
Protons (Z)
89
Neutrons (N)
129
Mass number
218
Half-Life
---
Abundance
---
Mass
218.012 u
Mass Excess
10,900.0 keV
Spin
(8-)
Discovered
---
Binding energy per nucleon
7,702 keV
Neutron separation energy
5,873 keV
Proton separation energy
2,279 keV
Decay Mode
Decay chain
- AcActinium-218Z 89 · N 129Unknown
- γ
- α100%
- α100%
- β⁺99.825%
- α100%