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Emission lines are lines that are made when wavelengths of light are given off by cooling gases. O True O False
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Emission lines are lines that are made when wavelengths of light are given off by cooling gases.

O True
O False

User Antione
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True. An emission line will appear in a spectrum if the source emits specific wavelengths of radiation. This emission occurs when an atom, element or molecule in an excited state returns to a configuration of lower energy. :)))
User Obtice
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