Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 4 - Section 4.7 - Trends in Periodic Properties - Understanding the Concepts - Page 129: 4.72c

Answer

Protons and neutrons.

Work Step by Step

Protons and neutrons are both located in the nucleus.
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