Pm

Promethium-134

Protons (Z)

61

Neutrons (N)

73

Mass number

134

Half-Life

22.0 s

Abundance

---

Mass

133.928 u

Mass Excess

-66,760.0 keV

Spin

(5+)

Discovered

1977

Binding energy per nucleon

8,213 keV

Neutron separation energy

9,421 keV

Proton separation energy

1,719 keV

Decay Mode

β⁺Neodymium-134100%

Decay chain

Promethium-134Z 61 · N 7322.0 s
β⁺100%
β⁺100%
β⁺100%
EC100%
β⁺100%