La

Lanthanum-136

Protons (Z)

57

Neutrons (N)

79

Mass number

136

Half-Life

9.87 m

Abundance

---

Mass

135.908 u

Mass Excess

-86,040.0 keV

Spin

1+

Discovered

1950

Binding energy per nucleon

8,376 keV

Neutron separation energy

7,468 keV

Proton separation energy

5,478 keV

Decay Mode

β⁺Barium-136100%

Decay chain

Lanthanum-136Z 57 · N 799.87 m
β⁺100%