Having a lot of trouble answering this problem. Can you please show the steps it took you to get to the answer.

The energy levels of one-electron ions are given by the equation 2 E, = (2.13 1333 n Where Z is atomic number, n. is the energy level, and al is the abbreviation for the unit attojoules. Ionization energy is the energy needed to eject an electron from an atom or ion. Calculate the ionization energy, IE, of the one-electron ion Li\". The electron starts in the lowest energy level, n = 1