Copper Ionization Energy

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

Cu -> Cu¹⁺ = 745.4 kJ/mol = 178.33 Kcal/mol
Cu¹⁺ -> Cu²⁺ = 1958 kJ/mol = 468.42 Kcal/mol
Cu²⁺ -> Cu³⁺ = 3554 kJ/mol = 850.24 Kcal/mol
Cu³⁺ -> Cu⁴⁺ = 5326 kJ/mol = 1274.16 Kcal/mol
Cu⁴⁺ -> Cu⁵⁺ = 7709 kJ/mol = 1844.26 Kcal/mol
Cu⁵⁺ -> Cu⁶⁺ = 9940 kJ/mol = 2377.99 Kcal/mol
Cu⁶⁺ -> Cu⁷⁺ = 13400 kJ/mol = 3205.74 Kcal/mol
Cu⁷⁺ -> Cu⁸⁺ = 16000 kJ/mol = 3827.75 Kcal/mol
Cu⁸⁺ -> Cu⁹⁺ = 19200 kJ/mol = 4593.30 Kcal/mol
Cu⁹⁺ -> Cu¹⁰⁺ = 22400 kJ/mol = 5358.85 Kcal/mol