Chemistry: The Central Science (13th Edition)

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

Chapter 8 - Basic Concepts of Chemical Bonding - Exercises - Page 335: 8.25a

Answer

$K-F$ distance: $2.71$ angstroms $Na-Cl$ distance: $2.83$ angstroms $Na-Br$ distance: $2.98$ angstroms $Li-Cl$ distance: $2.57$ angstroms

Work Step by Step

$KF$, $NaCl$, $NaBr$, $LiCl$ 1) The ionic radii of the ions: - $K^+$: 1.52 angstroms - $F^-$: 1.19 angstroms - $Na^+$: 1.16 angstroms - $Cl^-$: 1.67 angstroms - $Br^-$: 1.82 angstroms - $Li^+$: 0.90 angstroms 2) To estimate cation-anion distance, we would sum the ionic radii of the two ions in each compound. In detail, - $K-F$ distance: $1.52+1.19=2.71$ angstroms - $Na-Cl$ distance: $1.16+1.67=2.83$ angstroms - $Na-Br$ distance: $1.16+1.82=2.98$ angstroms - $Li-Cl$ distance: $0.90+1.67=2.57$ angstroms
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.