Cs
Caesium-123
Protons (Z)
55
Neutrons (N)
68
Mass number
123
Half-Life
5.88 m
Abundance
---
Mass
122.913 u
Mass Excess
-81,044.0 keV
Spin
1/2+
Discovered
1954
Binding energy per nucleon
8,380 keV
Neutron separation energy
10,975 keV
Proton separation energy
2,978 keV
Decay Mode
- β⁺→Xenon-123100%
Decay chain
- CsCaesium-123Z 55 · N 685.88 m
- β⁺100%
- β⁺100%
- β⁺100%