JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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Binding energy of hydrogen atom is 13.6 eV. The binding energy of a singly ionised helium atom is:

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Correct option: C

54.4 eV

Option C (54.4 eV) is correct because the binding energy of a singly ionized helium atom is four times that of a hydrogen atom due to the increased nuclear charge (Z=2).

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