At

Astatine-215

Protons (Z)

85

Neutrons (N)

130

Mass number

215

Half-Life

37.0 µs

Abundance

---

Mass

214.999 u

Mass Excess

-1,257.0 keV

Spin

9/2-

Discovered

1944

Binding energy per nucleon

7,768 keV

Neutron separation energy

5,949 keV

Proton separation energy

4,076 keV

Decay Mode

αBismuth-211100%

Decay chain

Astatine-215Z 85 · N 13037.0 µs
α100%
α~100%
β⁻100%