La

Lanthanum-146

Protons (Z)

57

Neutrons (N)

89

Mass number

146

Half-Life

9.9 s

Abundance

---

Mass

145.926 u

Mass Excess

-69,221.2 keV

Spin

(5-)

Discovered

1970

Binding energy per nucleon

8,240 keV

Neutron separation energy

4,458 keV

Proton separation energy

8,994 keV

Decay Mode

β⁻Cerium-146100%

Decay chain

Lanthanum-146Z 57 · N 899.9 s
β⁻100%
β⁻100%
β⁻100%