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Question
Assume that the potential energy of a hydrogen atom in its ground state is zero. Then its energy in the first excited state will be:
Assume that the potential energy of a hydrogen atom in its ground state is zero. Then its energy in the first excited state will be:
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Solution
The correct option is A 23.8eV
In ground state, H have −13.6∗2=−27.2eV potential energy.
If we assume, it is zero now means we increase H energy level by 27.2eV energy, so, now in first excited state it has total energy of −3.4+27.2=23.8eV
In ground state, H have −13.6∗2=−27.2eV potential energy.
If we assume, it is zero now means we increase H energy level by 27.2eV energy, so, now in first excited state it has total energy of −3.4+27.2=23.8eV
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