Mercury Ionization Energy

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

Hg -> Hg¹⁺ = 1007 kJ/mol = 240.91 Kcal/mol
Hg¹⁺ -> Hg²⁺ = 1809 kJ/mol = 432.78 Kcal/mol
Hg²⁺ -> Hg³⁺ = 3300 kJ/mol = 789.47 Kcal/mol
Hg³⁺ -> Hg⁴⁺ = 4400 kJ/mol = 1052.63 Kcal/mol
Hg⁴⁺ -> Hg⁵⁺ = 5900 kJ/mol = 1411.48 Kcal/mol
Hg⁵⁺ -> Hg⁶⁺ = 7400 kJ/mol = 1770.33 Kcal/mol
Hg⁶⁺ -> Hg⁷⁺ = 9100 kJ/mol = 2177.03 Kcal/mol
Hg⁷⁺ -> Hg⁸⁺ = 11600 kJ/mol = 2775.12 Kcal/mol
Hg⁸⁺ -> Hg⁹⁺ = 13400 kJ/mol = 3205.74 Kcal/mol
Hg⁹⁺ -> Hg¹⁰⁺ = 15300 kJ/mol = 3660.29 Kcal/mol