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An atomic spectrum is light the emitted or absorbed by atoms of certain elements.
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Open Book Report An atomic spectrum is light the emitted or absorbed by atoms of certain elements. Atoms can only emit and absorb light of certain frequencies, and the frequency of light emitted or absorbed in the visible part of the spectrum can be seen when light is passed through a prism. The diagram below (1) shows an emission spectrum. The hot flame excites the atoms, and causes their energy to increase. It is when they lose energy and return to their ground state that they emit energy in the form of electromagnetic information (2). This radiation is most often emitted in the infra red, visible or ultraviolet part of the spectrum. If the emitted light is then passed through a prism, it is split up into an atomic spectrum. Coloured lines will appear at certain intervals on the black background. Normally, there would be a continuous spectrum, but because atoms...
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