Ba

Barium-123m

Protons (Z)

56

Neutrons (N)

67

Mass number

123

Half-Life

830.0 ns

Abundance

---

Mass

122.919 u

Mass Excess

-75,534.0 keV

Spin

(1/2+)

Discovered

1991

Binding energy per nucleon

8,329 keV

Neutron separation energy

8,996 keV

Proton separation energy

4,683 keV

Decay Mode

γBarium-123100%

Decay chain

Barium-123Z 56 · N 67830.0 ns
γ100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%