Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 1 - Intermolecular Forces and Liquids and Solids - Questions & Problems - Page 510: 11.38

Answer

Simple Cubic = 1 atom Body-centered = 2 atoms Face-centered = 4 atoms

Work Step by Step

Simple cubic cells have one-eighth of a sphere inside the realm of the cell on each vertex, adding up to one whole atom. Body-centered cubic cells have the fractions of spheres on each vertex also, but include one whole atom in the center, two atoms altogether. Face-centered cubic cells have simple cubic cell's vertex spheres, but also have one-half of a sphere flushed on each face, totaling 4 spheres.
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