how do i do this? An atom (X) has the following fictitious succesive ionization energies: 745, 1685, 2541, 4425, 7185, 10752, and 27896 kJ/mol. What ion would you expect atom X to make?

Question

how do i do this? An atom (X) has the following fictitious succesive ionization energies:  745, 1685, 2541, 4425, 7185, 10752, and 27896 kJ/mol.  What ion would you expect atom X to make?