Sulphur Ionization Energy

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

S -> S¹⁺ = 999.6 kJ/mol = 239.14 Kcal/mol
S¹⁺ -> S²⁺ = 2251 kJ/mol = 538.52 Kcal/mol
S²⁺ -> S³⁺ = 3361 kJ/mol = 804.07 Kcal/mol
S³⁺ -> S⁴⁺ = 4564 kJ/mol = 1091.87 Kcal/mol
S⁴⁺ -> S⁵⁺ = 7013 kJ/mol = 1677.75 Kcal/mol
S⁵⁺ -> S⁶⁺ = 8495 kJ/mol = 2032.30 Kcal/mol
S⁶⁺ -> S⁷⁺ = 27106 kJ/mol = 6484.69 Kcal/mol
S⁷⁺ -> S⁸⁺ = 31669 kJ/mol = 7576.32 Kcal/mol
S⁸⁺ -> S⁹⁺ = 36578 kJ/mol = 8750.72 Kcal/mol
S⁹⁺ -> S¹⁰⁺ = 43138 kJ/mol = 10320.10 Kcal/mol