Au

Gold-197m

Protons (Z)

79

Neutrons (N)

118

Mass number

197

Half-Life

7.73 s

Abundance

---

Mass

196.967 u

Mass Excess

-30,730.7 keV

Spin

11/2-

Discovered

1945

Binding energy per nucleon

7,914 keV

Neutron separation energy

7,663 keV

Proton separation energy

5,375 keV

Decay Mode

γGold-197100%

Decay chain

Gold-197Z 79 · N 1187.73 s
γ100%