Tc

Technetium-99m

Protons (Z)

43

Neutrons (N)

56

Mass number

99

Half-Life

6.01 h

Abundance

---

Mass

98.906 u

Mass Excess

-87,185.2 keV

Spin

1/2-

Discovered

1958

Binding energy per nucleon

8,612 keV

Neutron separation energy

8,825 keV

Proton separation energy

6,358 keV

Decay Mode

Decay chain

Technetium-99Z 43 · N 566.01 h
γ~100%
β⁻100%