Technetium Ionization Energy

The Technetium Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Technetium.
Tc -> Tc⁺ + e^-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Technetium is:
Tc^N+ -> Tc^(N+1)+ + e^-

Tc -> Tc¹⁺ = 702 kJ/mol = 167.94 Kcal/mol
Tc¹⁺ -> Tc²⁺ = 1472 kJ/mol = 352.15 Kcal/mol
Tc²⁺ -> Tc³⁺ = 2850 kJ/mol = 681.82 Kcal/mol
Tc³⁺ -> Tc⁴⁺ = 4100 kJ/mol = 980.86 Kcal/mol
Tc⁴⁺ -> Tc⁵⁺ = 5700 kJ/mol = 1363.64 Kcal/mol
Tc⁵⁺ -> Tc⁶⁺ = 7300 kJ/mol = 1746.41 Kcal/mol
Tc⁶⁺ -> Tc⁷⁺ = 9100 kJ/mol = 2177.03 Kcal/mol
Tc⁷⁺ -> Tc⁸⁺ = 15600 kJ/mol = 3732.06 Kcal/mol
Tc⁸⁺ -> Tc⁹⁺ = 17800 kJ/mol = 4258.37 Kcal/mol
Tc⁹⁺ -> Tc¹⁰⁺ = 19900 kJ/mol = 4760.77 Kcal/mol