Sm

Samarium-131

Protons (Z)

62

Neutrons (N)

69

Mass number

131

Half-Life

1.2 s

Abundance

---

Mass

130.946 u

Mass Excess

-50,280.0 keV

Spin

(5/2+)

Discovered

1986

Binding energy per nucleon

8,085 keV

Neutron separation energy

10,651 keV

Proton separation energy

2,099 keV

Decay Mode

Decay chain

Samarium-131Z 62 · N 691.2 s
β⁺100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%
β⁺100%
EC100%