Ind in the gas phase, the lithium dication (doubly charged positive, or +2, ion), Li2+, has an energy level formula analogous to that he hydrogen atom, since both species have only one electron. The energy levels of the Li2+ ion are given by the equation En​=−n211815​ kJ/ mole n=1,2,3… a. Calculate the energies in k3/ mole for the four lowest energy levels of the Li2+ ion.