Bi

Bismuth-203m

Protons (Z)

83

Neutrons (N)

120

Mass number

203

Half-Life

305.0 ms

Abundance

---

Mass

202.978 u

Mass Excess

-20,427.0 keV

Spin

1/2+

Discovered

1984

Binding energy per nucleon

7,852 keV

Neutron separation energy

7,747 keV

Proton separation energy

1,775 keV

Decay Mode

γBismuth-203100%

Decay chain

Bismuth-203Z 83 · N 120305.0 ms
γ100%
β⁺100%
EC100%