At
Astatine-202
Protons (Z)
85
Neutrons (N)
117
Mass number
202
Half-Life
3.07 m
Abundance
---
Mass
201.989 u
Mass Excess
-10,595.0 keV
Spin
3+
Discovered
1961
Binding energy per nucleon
7,795 keV
Neutron separation energy
7,877 keV
Proton separation energy
1,363 keV
Decay Mode
Decay chain
- AtAstatine-202Z 85 · N 1173.07 m
- β⁺88%
- β⁺98.08%
- β⁺~100%
- EC100%
- EC100%