Te

Tellurium-131m

Protons (Z)

52

Neutrons (N)

79

Mass number

131

Half-Life

1.35 d

Abundance

---

Mass

130.909 u

Mass Excess

-85,028.76 keV

Spin

11/2-

Discovered

1940

Binding energy per nucleon

8,410 keV

Neutron separation energy

5,747 keV

Proton separation energy

10,032 keV

Decay Mode

Decay chain

Tellurium-131Z 52 · N 791.35 d
β⁻74.1%
β⁻100%