Posted by Josh on Wednesday, May 2, 2012 at 4:17pm.
Does atomic excitation occur in solids as well as in gases? Yes or No and Why?
Physics Help - Elena, Wednesday, May 2, 2012 at 5:06pm
Atomic excitation occurs in solids, liquids, and gases. Because atoms in a solid are close packed, radiation from them (and liquids) is smeared into a broad distribution to produce a continuous spectrum, whereas radiation from widely-spaced atoms in a gas is in separate bunches that produce discrete “lines” when diffracted by a grating.
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