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.
Analogy
Imagine you have a set of colored markers, each with its own unique color. Just like how each marker has a distinct color, each element has its own set of spectral lines that can be used to identify it.
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.
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