1. Explain why an end-centered unit cell cannot be cubic. What is the highest possible symmetry for this type of unit cell? 2. Explain why uncharged atoms or molecules never crystallize in simple structures. 3. Explain why a hexagonal closest-packed structure and a cubic closest-packed structure for a given element would be expected to have same density.

1. Explain why an end-centered unit cell cannot be cubic. What is the highest possible symmetry for this type of unit cell? 2. Explain why uncharged atoms or molecules never crystallize in simple structures. 3. Explain why a hexagonal closest-packed structure and a cubic closest-packed structure for a given element would be expected to have same density.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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