La

Lanthanum-120

Protons (Z)

57

Neutrons (N)

63

Mass number

120

Half-Life

2.8 s

Abundance

---

Mass

119.938 u

Mass Excess

-57,570.0 keV

Spin

(1-)

Discovered

1984

Binding energy per nucleon

8,179 keV

Neutron separation energy

10,621 keV

Proton separation energy

269 keV

Decay Mode

Decay chain

Lanthanum-120Z 57 · N 632.8 s
β⁺100%
β⁺100%
β⁺~100%
β⁺100%
β⁺100%