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If the binding energy of first excited state of a hydrogen like sample is 54.4 eV, then determine the atomic number, Z of the H-like species.

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Important Questions on Structure of Atom

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The excitation energy of first excited state of a hydrogen-like atom is 40.8 eV. The energy needed to remove the electron from ground state of the ion is:
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Match the following

a Energy of ground state of He+ i +6.04eV
b Potential energy of I orbit of H-atom ii -27.2eV
c Kinetic energy of II excited state of He iii 54.4 V
d lonisation potential of He+ iv -54.4eV
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The wavelength of a spectral line for an electronic transition is inversely related to
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The different lines in the Lyman series of a hydrogen spectrum lie in
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The spectral lines corresponding to the radiation emitted by an electron jumping from 6th, 5th and 4th orbits to the second orbit belong to
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The transition of the electron in H-atom that will emit maximum energy is:
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Which transition emits a photon of maximum frequency in hydrogen-like species?
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The shortest λ for the Brackett series for H is:  Given RH=109678cm-1