JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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The principal quantum number of H-atom orbital, if the electron energy is -3.4 eV, will be

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Correct option: B

Option B (2) is correct because the energy of an electron in a hydrogen atom is given by -13.6/n² eV, and solving for n when the energy is -3.4 eV gives n=2.

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