Cs

Caesium-148m

Protons (Z)

55

Neutrons (N)

93

Mass number

148

Half-Life

4.8 µs

Abundance

---

Mass

147.95 u

Mass Excess

-46,866.0 keV

Spin

(4-)

Discovered

2015

Binding energy per nucleon

8,097 keV

Neutron separation energy

3,017 keV

Proton separation energy

11,755 keV

Decay Mode

γCaesium-148100%

Decay chain

Caesium-148Z 55 · N 934.8 µs
γ100%
β⁻71.3%
β⁻99.6%
β⁻99.82%
β⁻100%
β⁻100%