Atoms of hot hydrogen gas will emit the Balmer series of spectral lines at visible wavelengths when the electrons fall from all higher atomic energy levels to the

Question

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The Balmer series of spectral lines is emitted when electrons in hydrogen atoms fall from higher energy levels to the second energy level (n = 2), known as the first excited level. This series is visible in the optical part of the electromagnetic spectrum.

Atoms of Hot Hydrogen Gas Will Emit the Balmer Series