Bi

Bismuth-215m

Protons (Z)

83

Neutrons (N)

132

Mass number

215

Half-Life

36.9 s

Abundance

---

Mass

215.003 u

Mass Excess

2,996.0 keV

Spin

(25/2-)

Discovered

2001

Binding energy per nucleon

7,755 keV

Neutron separation energy

3,874 keV

Proton separation energy

4,110 keV

Decay Mode

Decay chain

Bismuth-215Z 83 · N 13236.9 s
γ76.9%
β⁻100%
α~100%
β⁻100%
α~100%
β⁻100%