Emission spectrum of sodium

Emission spectrum of sodium

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Credit: PHYSICS DEPT., IMPERIAL COLLEGE/SCIENCE PHOTO LIBRARY

Caption: The photograph of the emission spectrum of sodium shows a single bright yellow line. In fact there are two emission lines, but they are so close together that the picture would have to be enlarged to a length of at least 2 metres before they became distinguishable. The yellow glow of sodium street lights is due to excited sodium atoms emitting light at this wavelength.

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Keywords: atomic structure, chemical, chemistry, element, elements, emission, emission line, emission spectrum, emission spectrum of, of sodium, particle physics, sodium, spectrum

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