Tc

Technetium-99

Protons (Z)

43

Neutrons (N)

56

Mass number

99

Half-Life

211.1 ky

Abundance

---

Mass

98.906 u

Mass Excess

-87,327.9 keV

Spin

9/2+

Discovered

1938

Binding energy per nucleon

8,614 keV

Neutron separation energy

8,967 keV

Proton separation energy

6,501 keV

Decay Mode

β⁻Ruthenium-99100%

Decay chain

Technetium-99Z 43 · N 56211.1 ky
β⁻100%