Answer
Sc
Work Step by Step
We know that Scandium is the only element which has a single electron in the 3d subshell in its neutral state. Thus, Sc is the correct answer.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 5 - Electron Configurations and the Periodic Table - Questions for Review and Thought - Topical Questions - Page 240d: 99b
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