Indium Ionization Energy

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

In -> In¹⁺ = 558.3 kJ/mol = 133.56 Kcal/mol
In¹⁺ -> In²⁺ = 1820.6 kJ/mol = 435.55 Kcal/mol
In²⁺ -> In³⁺ = 2704 kJ/mol = 646.89 Kcal/mol
In³⁺ -> In⁴⁺ = 5200 kJ/mol = 1244.02 Kcal/mol
In⁴⁺ -> In⁵⁺ = 7400 kJ/mol = 1770.33 Kcal/mol
In⁵⁺ -> In⁶⁺ = 9500 kJ/mol = 2272.73 Kcal/mol
In⁶⁺ -> In⁷⁺ = 11700 kJ/mol = 2799.04 Kcal/mol
In⁷⁺ -> In⁸⁺ = 13900 kJ/mol = 3325.36 Kcal/mol
In⁸⁺ -> In⁹⁺ = 17200 kJ/mol = 4114.83 Kcal/mol
In⁹⁺ -> In¹⁰⁺ = 19700 kJ/mol = 4712.92 Kcal/mol