Cs
Caesium-118m
Protons (Z)
55
Neutrons (N)
63
Mass number
118
Half-Life
17.0 s
Abundance
---
Mass
117.927 u
Mass Excess
-68,310.0 keV
Spin
(7-)
Discovered
1972
Binding energy per nucleon
8,286 keV
Neutron separation energy
9,891 keV
Proton separation energy
1,414 keV
Decay Mode
Decay chain
- CsCaesium-118Z 55 · N 6317.0 s
- β⁺99.978%
- β⁺100%
- β⁺100%
- EC100%
- β⁺100%