Which of the following best describes the emission spectrum of atomic hydrogen?
Correct answer: D. Several discrete series of lines with both intensity and spacings between lines decreasing as the wavenumber increases with each series.
- A. A discrete series of lines of equal intensity and equally spaced with respect to wavelength equally.
- B. A series of only four lines
- C. A continuous emission of radiation of all frequencies
- D. Several discrete series of lines with both intensity and spacings between lines decreasing as the wavenumber increases with each series.
Explanation
The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom. These lines have decreasing spacings(as shown below)
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