Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 33 - Think and Explain - Page 635-636: 55


See below.

Work Step by Step

Alpha particles have the same positive charge as the target nuclei, so there is a mutual repulsion. Also, an alpha particle has twice as much charge as a beta particle, and loses kinetic energy due to its ionizing more atoms in the target.
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