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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?
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Write the chemical symbols for three different atoms or atomic cations with 20 electrons....
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