Answer:
No, a spectral line with wavelength 656 nm can not be seen in the absorption spectrum of hydrogen atoms
Explanation:
An atom of hydrogen is the simplest among all elements. One proton presents in the nucleus, while the only one electron present in hydrogen freely rotates in the orbits of an atom. Electron of hydrogen atom is at its lowest energy level when it is simply sitting about with very little energy. The electron moves to excited state or high energy level after the absorption of light. Depends on the amount of energy it takes in; this can jump to one level or several. The electron could only transition from one level of energy to another. It can't transition between levels halfway. Additionally, moving an electron through one level to some other requires a very precise quantity of energy neither more nor less. The wavelength of 656 nm falls into the emission spectrum rather than the absorption spectrum, according to the Lyman series.
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