At

Astatine-210

Protons (Z)

85

Neutrons (N)

125

Mass number

210

Half-Life

8.1 h

Abundance

---

Mass

209.987 u

Mass Excess

-11,972.0 keV

Spin

(5+)

Discovered

1949

Binding energy per nucleon

7,812 keV

Neutron separation energy

7,159 keV

Proton separation energy

2,895 keV

Decay Mode

Decay chain

Astatine-210Z 85 · N 1258.1 h
β⁺99.825%
α100%