Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 6 - Electronic Structure of Atoms - Exercises: 6.40b

Answer

1.82$\times$10$^{-6}$ meters; The light will be absorbed.

Work Step by Step

Use the equation for change in energy from one energy level to another. For n(final) plug in 9 and for n(initial) plug in 4. Once you get that answer in Joules, use Einstein's equation relating energy to wavelength to find the wavelength in meters.
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