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: 75


Rutherford's famous experiment that revealed the existence of the nucleus (pages 603-604) would have had very different results.

Work Step by Step

If an atomic nucleus were composed of equal numbers of protons and electrons, it would have no net charge. With a neutral nucleus, incoming positively-charged alpha particles would not be backscattered in large numbers. The nucleus is positively charged.
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