General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 7 - Quantam Theory of the Atom - Questions and Problems - Page 292: 7.5

Answer

Please see the work below.

Work Step by Step

We know that photoelectric effects refers to the ejection of electrons from the suffer of a metal when light strikes on it. Electrons are ejected from a metal when the frequency of light is larger than a threshold value. When a photon has a frequency equal to or greater than the threshold value then electrons will be ejected.
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