Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 9 - Liquids, Solids, and Materials - Questions for Review and Thought - Review Questions - Page 421: 9


hexagonal closest packing

Work Step by Step

We know that the cubic structure involves having atoms in its unit cell at each corner of an imaginary cube. However, the hexagonal closest packing structure involves having hexagonal layers, where each layer is directly above another layer. Since this is a far more efficient use of space, hexagonal close packing is the correct answer.
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