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 130: 4.81d

Answer

Therefore, Ar has the highest ionization energy.

Work Step by Step

Ionization energy increases as we move right across a period. It is harder for an element on the right to lose an electron.
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