Hg

Mercury-209

Protons (Z)

80

Neutrons (N)

129

Mass number

209

Half-Life

6.3 s

Abundance

---

Mass

208.991 u

Mass Excess

-8,610.0 keV

Spin

(9/2+)

Discovered

1998

Binding energy per nucleon

7,813 keV

Neutron separation energy

3,411 keV

Proton separation energy

9,989 keV

Decay Mode

Decay chain

Mercury-209Z 80 · N 1296.3 s
β⁻100%
β⁻100%
β⁻100%
α100%