Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 2 - Sections 2.1-2.9 - Exercises - Review Questions: 8

Answer

Millikan sprayed oil drops into a chamber with ionizing radiation between charged plates.

Work Step by Step

Using an electric field that was balanced by the gravitational field he was able to compute the charge of the suspended oil drops. He found that the charges were integral multiples of the smallest charge. Using Thomson's charge-to-mass ratio, he was able to determine the mass of a single electron.
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