The transition of electrons in H atom that will emit maximum energy is:
Correct answer: A. n3 → n2
- A. n3 → n2
- B. n4 → n3
- C. n5 → n4
- D. n6 → n5
Explanation
The transition of an electron from n3 to n2 in the hydrogen atom emits the maximum energy because the energy levels are closer together the further they are from the nucleus, meaning the difference is greatest between lower levels. Thus, (E2−E1) > (E3−E2) > (E4−E3), and so on. Consequently, options n4 → n3, n5 → n4, and n6 → n5 release progressively less energy, making them incorrect choices compared to n3 → n2.
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About Spectrum of Hydrogen
The hydrogen spectrum consists of discrete emission lines produced when electrons fall between quantised energy levels and release photons. Questions use the Rydberg equation, photon energy and wavelength, and identify the Lyman, Balmer, Paschen, Brackett and Pfund series, which differ from continuous spectra.
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