La

Lanthanum-124

Protons (Z)

57

Neutrons (N)

67

Mass number

124

Half-Life

29.21 s

Abundance

---

Mass

123.925 u

Mass Excess

-70,260.0 keV

Spin

(7-)

Discovered

1978

Binding energy per nucleon

8,278 keV

Neutron separation energy

9,681 keV

Proton separation energy

1,894 keV

Decay Mode

β⁺Barium-124100%

Decay chain

Lanthanum-124Z 57 · N 6729.21 s
β⁺100%
β⁺100%
β⁺100%