Bi

Bismuth-217m

Protons (Z)

83

Neutrons (N)

134

Mass number

217

Half-Life

3.0 µs

Abundance

---

Mass

217.011 u

Mass Excess

10,221.0 keV

Spin

(25/2-)

Discovered

2012

Binding energy per nucleon

7,725 keV

Neutron separation energy

3,724 keV

Proton separation energy

4,578 keV

Decay Mode

γBismuth-217100%

Decay chain

Bismuth-217Z 83 · N 1343.0 µs
γ100%
β⁻100%
α97.5%
β⁻100%
β⁻97.91%
α100%
β⁻100%
α100%