Gold Ionization Energy

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

Au -> Au¹⁺ = 890.1 kJ/mol = 212.94 Kcal/mol
Au¹⁺ -> Au²⁺ = 1980 kJ/mol = 473.68 Kcal/mol
Au²⁺ -> Au³⁺ = 2900 kJ/mol = 693.78 Kcal/mol
Au³⁺ -> Au⁴⁺ = 4200 kJ/mol = 1004.78 Kcal/mol
Au⁴⁺ -> Au⁵⁺ = 5600 kJ/mol = 1339.71 Kcal/mol
Au⁵⁺ -> Au⁶⁺ = 7000 kJ/mol = 1674.64 Kcal/mol
Au⁶⁺ -> Au⁷⁺ = 9300 kJ/mol = 2224.88 Kcal/mol
Au⁷⁺ -> Au⁸⁺ = 11000 kJ/mol = 2631.58 Kcal/mol
Au⁸⁺ -> Au⁹⁺ = 12800 kJ/mol = 3062.20 Kcal/mol
Au⁹⁺ -> Au¹⁰⁺ = 14800 kJ/mol = 3540.67 Kcal/mol