Te

Tellurium-129m

Protons (Z)

52

Neutrons (N)

77

Mass number

129

Half-Life

33.6 d

Abundance

---

Mass

128.907 u

Mass Excess

-86,899.4 keV

Spin

11/2-

Discovered

1940

Binding energy per nucleon

8,430 keV

Neutron separation energy

5,977 keV

Proton separation energy

9,558 keV

Decay Mode

Decay chain

Tellurium-129Z 52 · N 7733.6 d
γ64%
β⁻100%
β⁻100%