Answer
$\frac{1}{2}$
Work Step by Step
The answer is 1/2, because there are 2 tetrahedral sites for each O2- ion and the ratio of Be2+ ions is 1:1. Therefore, 1/2 of these sites are occupied with Be2+ ions.
Materials Science and Engineering: An Introduction
by Callister, William D.; Rethwisch, David G.
Published by
Wiley
ISBN 10:
1118324579
ISBN 13:
978-1-11832-457-8
Chapter 12 - Structures and Properties of Ceramics - Questions and Problems - Page 506: 12.10b
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