Hg

Mercury-203m

Protons (Z)

80

Neutrons (N)

123

Mass number

203

Half-Life

22.1 µs

Abundance

---

Mass

202.974 u

Mass Excess

-24,336.1 keV

Spin

(13/2+)

Discovered

1964

Binding energy per nucleon

7,883 keV

Neutron separation energy

5,062 keV

Proton separation energy

7,272 keV

Decay Mode

γMercury-203100%

Decay chain

Mercury-203Z 80 · N 12322.1 µs
γ100%
β⁻100%