
-The difference in energy between the n = 2 and n = 1 electronic energy levels in the hydrogen atom is 1.6 × 10−18 J.If an electron moves from the n = 1 level to the n = 2 level,will a photon be emitted or absorbed? What will its energy be,and what type of electromagnetic radiation is it? Use the electromagnetic spectrum shown above to answer this question.
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