The lithium ion, Li2+, could be expected to have energy levels close to those of hydrogen atom. This is so because          lithium atom has a closed n=1 shell with two electrons and then one electron outside.  Also the outer electron  looks inward at just one net positive charge. The energy levels of the Li2+ are given by the equation                                 En = -11808 / n2  kJ/mole   n = 1, 2, 3, ...       Calculate the energy in kJ/mole for the first lowest energy level of the Li2+ ion E1, Second lowest E2, third lowest E3, and fourth lowest E4 in  kJ/mole

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