Conceptual Physics (12th Edition)

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

Chapter 33 - Reading Check Questions (Comprehension) - Page 633-634: 14

Answer

Neutrons help hold the nucleus together.

Work Step by Step

The "strong force" holds the nucleus together: this is an attractive force that acts between nucleons. Neutrons don’t contribute any repelling forces, and also provide space between protons, weakening the electric repulsion between them. This is discussed on page 623.
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