Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 8 - Periodic Relationships Among the Elements - Questions & Problems - Page 361: 8.45

Answer

Please see the work below.

Work Step by Step

We know that $Cu^+$ has one more electron than $Cu^{+2}$ that's why $Cu^+$ is larger.
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