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: 8.34

Answer

Please see the work below.

Work Step by Step

We know that as we move from left to right in a period, electrons are filled in same shell while nuclear charge increases as a result atomic size decreases. On the other hand, going down the group electrons are filled in higher shell and thus the atomic radius increases.
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