when an excited electron in a hydrogen atom falls from n=5 to n=2, a photon of blue light is emitted. If an excited electron in an He+ ion falls from n=4, which energy level must it fall to (n1) or blue light of a similar Waveland to be emitted?

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
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Chapter5: Electron Configurations And The Periodic Table
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when an excited electron in a hydrogen atom falls from n=5 to n=2, a photon of blue light is emitted. If an excited electron in an He+ ion falls from n=4, which energy level must it fall to (n1) or blue light of a similar Waveland to be emitted?

 

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