Xe
Xenon-128m
Protons (Z)
54
Neutrons (N)
74
Mass number
128
Half-Life
83.0 ns
Abundance
---
Mass
127.907 u
Mass Excess
-87,073.3 keV
Spin
8-
Discovered
1981
Binding energy per nucleon
8,422 keV
Neutron separation energy
6,824 keV
Proton separation energy
5,379 keV
Decay Mode
- γ→Xenon-128100%
Decay chain
- XeXenon-128Z 54 · N 7483.0 ns
- γ100%