Bi

Bismuth-200m

Protons (Z)

83

Neutrons (N)

117

Mass number

200

Half-Life

31.0 m

Abundance

---

Mass

199.978 u

Mass Excess

-20,270.0 keV

Spin

(2+)

Discovered

1978

Binding energy per nucleon

7,848 keV

Neutron separation energy

7,543 keV

Proton separation energy

2,327 keV

Decay Mode

Decay chain

Bismuth-200Z 83 · N 11731.0 m
β⁺<100%
EC100%
β⁺100%