Spectral Lines

Definition

Spectral lines are specific wavelengths of light that are emitted or absorbed by atoms or molecules. They serve as a unique "fingerprint" for each element, allowing scientists to identify the composition of celestial objects and analyze their properties.

Related terms

Emission Spectrum: The pattern of spectral lines produced when an atom or molecule emits light.

Absorption Spectrum: The pattern of dark lines observed when an atom or molecule absorbs specific wavelengths of light.

Balmer Series: A series of spectral lines in the visible region of the electromagnetic spectrum that corresponds to transitions in hydrogen atoms.