When electron series terminates on the 4th orbit, the _ series is obtained.
Correct answer: D. None of these options are correct
- A. Balmer
- B. Pfund
- C. Paschen
- D. None of these options are correct
Explanation
None of these options are correct. When an electron series terminates on the 4th orbit, it corresponds to the Lyman series. So, option D is correct.
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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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