Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 8 - Basic Concepts of Chemical Bonding - Exercises - Page 335: 8.32

Answer

K and Ar are unlikely to form the covalent bond.

Work Step by Step

Potassium is alkali metal it has a single electron in its valence shell 4s1. So it tends to lose its electron to form an ionic bond. On the other hand, Ar has closed shell it has no tendency to form bonds under ordinary condition.
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