Cs

Caesium-123n

Protons (Z)

55

Neutrons (N)

68

Mass number

123

Half-Life

114.0 ns

Abundance

---

Mass

122.913 u

Mass Excess

-80,792.0 keV

Spin

(9/2+)

Discovered

2000

Binding energy per nucleon

8,378 keV

Neutron separation energy

10,723 keV

Proton separation energy

2,726 keV

Decay Mode

γCaesium-123100%

Decay chain

Caesium-123Z 55 · N 68114.0 ns
γ100%
β⁺100%
β⁺100%
β⁺100%