Hg

Mercury-205m

Protons (Z)

80

Neutrons (N)

125

Mass number

205

Half-Life

1.09 ms

Abundance

---

Mass

204.978 u

Mass Excess

-20,732.0 keV

Spin

13/2+

Discovered

1985

Binding energy per nucleon

7,867 keV

Neutron separation energy

4,113 keV

Proton separation energy

7,631 keV

Decay Mode

γMercury-205100%

Decay chain

Mercury-205Z 80 · N 1251.09 ms
γ100%
β⁻100%