Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 7 - Periodic Properties of the Elements - Exercises: 7.36b

Answer

The differences between the experimentally measured distances and the predicted distances: $Li-F: 0.08$ angstrom $Na-Cl: 0.01$ angstrom $K-Br: 0.04$ angstrom $Rb-I: 0.05$ angstrom In the case of $Na-Cl$ and $K-Br$, the two sets are the same. In the case of $Li-F$ and $Rb-I$, the two sets are not.

Work Step by Step

The differences between the experimentally measured distances and the predicted distances: $Li-F: 2.09-2.01=0.08$ angstrom $Na-Cl: 2.83-2.82=0.01$ angstrom $K-Br: 3.34-3.30=0.04$ angstrom $Rb-I: 3.72-3.67=0.05$ angstrom Assuming we have an accuracy of $0.04$ angstrom, then in the case of $Na-Cl$ and $K-Br$, the two sets are the same. But in the case of $Li-F$ and $Rb-I$, the two sets are not the same.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.