Pr

Praseodymium-129

Protons (Z)

59

Neutrons (N)

70

Mass number

129

Half-Life

30.0 s

Abundance

---

Mass

128.925 u

Mass Excess

-69,774.0 keV

Spin

(3/2+)

Discovered

1977

Binding energy per nucleon

8,254 keV

Neutron separation energy

11,514 keV

Proton separation energy

1,529 keV

Decay Mode

β⁺Cerium-129100%

Decay chain

Praseodymium-129Z 59 · N 7030.0 s
β⁺100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%