University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 43 - Nuclear Physics - Problems - Discussion Questions - Page 1474: Q43.4

Answer

Nuclei with more protons than neutrons generally aren’t stable.

Work Step by Step

As the nucleus gets larger, additional protons that are added repel one another electrically. Neutrons act as spacers and help hold the nucleus together, via the strong nuclear force. Nuclei with more protons than neutrons generally aren’t stable.
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