Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 1 - Chemical Foundations - Active Learning Questions: 2

Answer

The deflection of the cathode ray tubes towards the positively charged plates indicated a negative charge in cathode rays.

Work Step by Step

In J.J. Thomson's experiment, two electric plates were placed around the cathode ray, one positively charged and one negatively charged. When the device was turned on, the cathode ray was observed to deflect away from the negatively charged plate and towards the positively charged plate.
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