The Lyman series of hydrogen appears in which region of the spectrum?
- A. Infrared
- B. Visible
- C. Ultraviolet
- D. Radio
Explanation
Every Lyman transition ends on the ground state, so the energy released is large and the photons are ultraviolet. Larger energy gaps always mean higher frequency and shorter wavelength. Working out which series a line belongs to is simply a matter of identifying the level it ends on.
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