Word Count : 234

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Atomic spectra appear as line spectra because atoms have discrete, quantized energy levels for their electrons. When an electron in an atom transitions between these fixed energy levels, it emits or absorbs a photon with a precise energy corresponding to the difference between the two levels. This results in sharp, well-defined spectral lines at specific wavelengths. Each element ________ ____ ___ _____ __________ ___ ________ ___.
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