In a hydrogen like ion, the energy difference between the ${2}^{\text{nd }}$ excitation energy state and ground is $108.8eV$ . The atomic number of the ion is:

[JEE Main 2025, 7 Apr (Shift 1)]

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In a hydrogen like ion, the energy difference between the ${2}^{\text{nd }}$ excitation energy state and ground is $108.8eV$ . The atomic number of the ion is: [JEE Main 2025, 7 Apr (Shift 1)]

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In a hydrogen like ion, the energy difference between the \({2}^{\text{nd }}\) excitation energy state and ground is \(1…

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