Pr

Praseodymium-121

Protons (Z)

59

Neutrons (N)

62

Mass number

121

Half-Life

12.0 ms

Abundance

---

Mass

120.955 u

Mass Excess

-41,550.0 keV

Spin

(3/2+)

Discovered

2005

Binding energy per nucleon

8,033 keV

Neutron separation energy

---

Proton separation energy

-891 keV

Decay Mode

pCerium-120100%

Decay chain

Praseodymium-121Z 59 · N 6212.0 ms
p100%
β⁺
β⁺100%
β⁺100%
β⁺~100%
β⁺100%
β⁺100%