Chemistry: The Central Science (13th Edition)

by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.

Published by Prentice Hall

ISBN 10: 0321910419

ISBN 13: 978-0-32191-041-7

Chapter 7 - Periodic Properties of the Elements - Additional Exercises - Page 294: 7.84

Answer

She is correct.

Work Step by Step

When an atomic radii can be measured the result is more accurate than an estimate. Xe is known to appear in a number of compounds so its atomic radii has been measured. There are no known compounds with Ne so its atomic radii is an estimate.

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