Sn

Tin-131

Protons (Z)

50

Neutrons (N)

81

Mass number

131

Half-Life

56.0 s

Abundance

---

Mass

130.917 u

Mass Excess

-77,265.0 keV

Spin

3/2+

Discovered

1963

Binding energy per nucleon

8,363 keV

Neutron separation energy

5,204 keV

Proton separation energy

14,647 keV

Decay Mode

β⁻Antimony-131100%

Decay chain

Tin-131Z 50 · N 8156.0 s
β⁻100%
β⁻100%
β⁻100%
β⁻100%