Pm

Promethium-152

Protons (Z)

61

Neutrons (N)

91

Mass number

152

Half-Life

4.12 m

Abundance

---

Mass

151.924 u

Mass Excess

-71,254.0 keV

Spin

1+

Discovered

1958

Binding energy per nucleon

8,226 keV

Neutron separation energy

5,939 keV

Proton separation energy

7,600 keV

Decay Mode

β⁻Samarium-152100%

Decay chain

Promethium-152Z 61 · N 914.12 m
β⁻100%