Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 6 - The Periodic Table - 6.3 Periodic Trends - 6.3 Lesson Check - Page 182: 24



Work Step by Step

Atomic size generally increases when moving down a group and decreases when moving across a period from left to right. In this problem, all the elements involved are in the same period. This is, therefore, a periodic trend (referring to the fact that it occurs in a period, or row of the periodic table). The elements on the left side are larger than those on the right side.
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