Manganese Ionization Energy

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

Mn -> Mn¹⁺ = 717.4 kJ/mol = 171.63 Kcal/mol
Mn¹⁺ -> Mn²⁺ = 1509 kJ/mol = 361.00 Kcal/mol
Mn²⁺ -> Mn³⁺ = 3248.4 kJ/mol = 777.13 Kcal/mol
Mn³⁺ -> Mn⁴⁺ = 4940 kJ/mol = 1181.82 Kcal/mol
Mn⁴⁺ -> Mn⁵⁺ = 6990 kJ/mol = 1672.25 Kcal/mol
Mn⁵⁺ -> Mn⁶⁺ = 9200 kJ/mol = 2200.96 Kcal/mol
Mn⁶⁺ -> Mn⁷⁺ = 11508 kJ/mol = 2753.11 Kcal/mol
Mn⁷⁺ -> Mn⁸⁺ = 18956 kJ/mol = 4534.93 Kcal/mol
Mn⁸⁺ -> Mn⁹⁺ = 21400 kJ/mol = 5119.62 Kcal/mol
Mn⁹⁺ -> Mn¹⁰⁺ = 23960 kJ/mol = 5732.06 Kcal/mol