Cs

Caesium-131

Protons (Z)

55

Neutrons (N)

76

Mass number

131

Half-Life

9.69 d

Abundance

---

Mass

130.905 u

Mass Excess

-88,055.57 keV

Spin

5/2+

Discovered

1947

Binding energy per nucleon

8,415 keV

Neutron separation energy

9,227 keV

Proton separation energy

5,464 keV

Decay Mode

ECXenon-131100%

Decay chain

Caesium-131Z 55 · N 769.69 d
EC100%