Au

Gold-187m

Protons (Z)

79

Neutrons (N)

108

Mass number

187

Half-Life

2.3 s

Abundance

---

Mass

186.965 u

Mass Excess

-32,909.0 keV

Spin

9/2-

Discovered

1983

Binding energy per nucleon

7,917 keV

Neutron separation energy

9,265 keV

Proton separation energy

2,334 keV

Decay Mode

γGold-187100%

Decay chain

Gold-187Z 79 · N 1082.3 s
γ100%
β⁺100%
β⁺100%
β⁺100%