Au

Gold-198m

Protons (Z)

79

Neutrons (N)

119

Mass number

198

Half-Life

124.0 ns

Abundance

---

Mass

197.969 u

Mass Excess

-29,268.6 keV

Spin

5+

Discovered

1968

Binding energy per nucleon

7,907 keV

Neutron separation energy

6,200 keV

Proton separation energy

6,138 keV

Decay Mode

γGold-198100%

Decay chain

Gold-198Z 79 · N 119124.0 ns
γ100%
β⁻100%