Pr

Praseodymium-138

Protons (Z)

59

Neutrons (N)

79

Mass number

138

Half-Life

1.45 m

Abundance

---

Mass

137.911 u

Mass Excess

-83,129.0 keV

Spin

1+

Discovered

1951

Binding energy per nucleon

8,339 keV

Neutron separation energy

7,998 keV

Proton separation energy

4,499 keV

Decay Mode

β⁺Cerium-138100%

Decay chain

Praseodymium-138Z 59 · N 791.45 m
β⁺100%