Fluorine Ionization Energy

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

F -> F¹⁺ = 1681 kJ/mol = 402.15 Kcal/mol
F¹⁺ -> F²⁺ = 3374 kJ/mol = 807.18 Kcal/mol
F²⁺ -> F³⁺ = 6050 kJ/mol = 1447.37 Kcal/mol
F³⁺ -> F⁴⁺ = 8408 kJ/mol = 2011.48 Kcal/mol
F⁴⁺ -> F⁵⁺ = 11023 kJ/mol = 2637.08 Kcal/mol
F⁵⁺ -> F⁶⁺ = 15164 kJ/mol = 3627.75 Kcal/mol
F⁶⁺ -> F⁷⁺ = 17867 kJ/mol = 4274.40 Kcal/mol
F⁷⁺ -> F⁸⁺ = 92036 kJ/mol = 22018.18 Kcal/mol
F⁸⁺ -> F⁹⁺ = 106432 kJ/mol = 25462.20 Kcal/mol