At

Astatine-218

Protons (Z)

85

Neutrons (N)

133

Mass number

218

Half-Life

1.28 s

Abundance

---

Mass

218.009 u

Mass Excess

8,100.0 keV

Spin

(2-)

Discovered

1943

Binding energy per nucleon

7,729 keV

Neutron separation energy

4,366 keV

Proton separation energy

5,072 keV

Decay Mode

Decay chain

Astatine-218Z 85 · N 1331.28 s
α100%
β⁻99.976%
α100%
β⁻~100%
β⁻~100%
α100%