Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 27 - Early Quantum Theory and Models of the Atom - Misconceptual Questions: 11


Choice D.

Work Step by Step

Photon emission means that the electron falls from a higher-n state to a lower-n state. Energy levels are more closely spaced for higher values of n. The transition from 8 to 5 emits a photon with lower energy than the photon emitted by a n=5 to n=2 transition. This lower energy means a smaller frequency and a longer wavelength.
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