Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 8 - The Periodic Table: Structure and Trends - Questions and Exercises - Questions - Page 320: 8.11

Answer

This is due to the increasing shielding effect in manganese, iron, and cobalt as the d subshell is being filled. However, the d subshell in gallium, germanium, and arsenic is completely filled, and all the electrons experience the same shielding effect.

Work Step by Step

As above
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