Answer
As we move right across period 4, the ionization energy increases.
Work Step by Step
As the elements gain valence electrons, the energy required to remove one increases.
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 4 - Section 4.7 - Trends in Periodic Properties - Questions and Problems - Page 125: 4.66a
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