Cadmium Ionization Energy

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

Cd -> Cd¹⁺ = 867.6 kJ/mol = 207.56 Kcal/mol
Cd¹⁺ -> Cd²⁺ = 1631 kJ/mol = 390.19 Kcal/mol
Cd²⁺ -> Cd³⁺ = 3616 kJ/mol = 865.07 Kcal/mol
Cd³⁺ -> Cd⁴⁺ = 5300 kJ/mol = 1267.94 Kcal/mol
Cd⁴⁺ -> Cd⁵⁺ = 7000 kJ/mol = 1674.64 Kcal/mol
Cd⁵⁺ -> Cd⁶⁺ = 9100 kJ/mol = 2177.03 Kcal/mol
Cd⁶⁺ -> Cd⁷⁺ = 11100 kJ/mol = 2655.50 Kcal/mol
Cd⁷⁺ -> Cd⁸⁺ = 14100 kJ/mol = 3373.21 Kcal/mol
Cd⁸⁺ -> Cd⁹⁺ = 16400 kJ/mol = 3923.44 Kcal/mol
Cd⁹⁺ -> Cd¹⁰⁺ = 18800 kJ/mol = 4497.61 Kcal/mol