Xe
Xenon-121
Protons (Z)
54
Neutrons (N)
67
Mass number
121
Half-Life
40.1 m
Abundance
---
Mass
120.911 u
Mass Excess
-82,481.0 keV
Spin
5/2+
Discovered
1952
Binding energy per nucleon
8,404 keV
Neutron separation energy
8,380 keV
Proton separation energy
6,023 keV
Decay Mode
- β⁺→Iodine-121100%
Decay chain
- XeXenon-121Z 54 · N 6740.1 m
- β⁺100%
- β⁺100%
- β⁺100%