Conceptual Physics (12th Edition)

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

Chapter 34 - Think and Explain - Page 654-655: 39


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The strong force that holds nucleons together against electric repulsion is a very short-range force, reaching from nucleons to their nearest neighbors. The repulsive force between protons reaches everywhere. The heavier the nucleus, the greater the chance that mutual electrical repulsion will dominate the attractive nuclear forces, resulting in spontaneous fission.
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