La

Lanthanum-125m

Protons (Z)

57

Neutrons (N)

68

Mass number

125

Half-Life

390.0 ms

Abundance

---

Mass

124.921 u

Mass Excess

-73,652.0 keV

Spin

(3/2+)

Discovered

1998

Binding energy per nucleon

8,304 keV

Neutron separation energy

11,463 keV

Proton separation energy

1,851 keV

Decay Mode

γLanthanum-125100%

Decay chain

Lanthanum-125Z 57 · N 68390.0 ms
γ100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%
EC100%