At
Astatine-211m
Protons (Z)
85
Neutrons (N)
126
Mass number
211
Half-Life
4.23 µs
Abundance
---
Mass
210.993 u
Mass Excess
-6,832.7 keV
Spin
(39/2-)
Discovered
1971
Binding energy per nucleon
7,789 keV
Neutron separation energy
2,932 keV
Proton separation energy
-1,831 keV
Decay Mode
- γ→Astatine-211100%
Decay chain
- AtAstatine-211Z 85 · N 1264.23 µs
- γ100%
- EC58.2%
- α100%