Pm

Promethium-134m

Protons (Z)

61

Neutrons (N)

73

Mass number

134

Half-Life

---

Abundance

---

Mass

133.928 u

Mass Excess

-66,710.0 keV

Spin

(2+)

Discovered

1988

Binding energy per nucleon

8,213 keV

Neutron separation energy

9,371 keV

Proton separation energy

1,669 keV

Decay Mode

β⁺Neodymium-134100%

Decay chain

Promethium-134Z 61 · N 73Unknown
β⁺100%
β⁺100%
β⁺100%
EC100%
β⁺100%