Au
Gold-178m
Protons (Z)
79
Neutrons (N)
99
Mass number
178
Half-Life
300.0 ns
Abundance
---
Mass
177.976 u
Mass Excess
-22,253.0 keV
Spin
(4+)
Discovered
2019
Binding energy per nucleon
7,849 keV
Neutron separation energy
8,778 keV
Proton separation energy
172 keV
Decay Mode
- γ→Gold-178100%
Decay chain
- AuGold-178Z 79 · N 99300.0 ns
- γ100%
- β⁺84%
- β⁺92.3%
- β⁺100%
- β⁺100%
- β⁺100%
- EC100%
- β⁺100%