the energy of first exited state of he+ atom is
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Assuming a semi classical model of H like atoms
En = -13.6Z^2/n^2
Energy in the ground state of H will be given by n = 1 and Z = 1 in the formula, i.e E1 = -13.6
Energy in the first excited state of He+ will be given by n = 2 and Z = 2 in the formula, i.e E2 = -13.6(2)^2/2^2
Thus the ratio =1
En = -13.6Z^2/n^2
Energy in the ground state of H will be given by n = 1 and Z = 1 in the formula, i.e E1 = -13.6
Energy in the first excited state of He+ will be given by n = 2 and Z = 2 in the formula, i.e E2 = -13.6(2)^2/2^2
Thus the ratio =1
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