At

Astatine-201

Protons (Z)

85

Neutrons (N)

116

Mass number

201

Half-Life

1.42 m

Abundance

---

Mass

200.988 u

Mass Excess

-10,789.0 keV

Spin

9/2-

Discovered

1963

Binding energy per nucleon

7,794 keV

Neutron separation energy

9,872 keV

Proton separation energy

1,136 keV

Decay Mode

Decay chain

Astatine-201Z 85 · N 1161.42 m
α71%
β⁺100%
β⁺100%
β⁺100%
EC100%