Neon Ionization Energy

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