At
Astatine-197
Protons (Z)
85
Neutrons (N)
112
Mass number
197
Half-Life
388.2 ms
Abundance
---
Mass
196.993 u
Mass Excess
-6,355.0 keV
Spin
9/2-
Discovered
1967
Binding energy per nucleon
7,766 keV
Neutron separation energy
10,516 keV
Proton separation energy
175 keV
Decay Mode
Decay chain
- AtAstatine-197Z 85 · N 112388.2 ms
- α96.1%
- β⁺96.5%
- β⁺
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%