Chemistry: The Central Science (13th Edition)

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

Chapter 2 - Atoms, Molecules, and Ions - Exercises - Page 74: 2.16

Answer

If it is deflected in the opposite direction, it must have a charge opposite that of the beta particle.

Work Step by Step

If it is deflected by a smaller magnitude, it must have a greater mass. Because the force pulling the particle does not change, it must be heavier if it bends to a lesser degree.
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