Sodium ([Ne] 3s¹3pº) forms a simple cubic (sc) primitive crystal structure, in which Na atoms are arranged at the corners of a cube. a) How many atoms are contained in the unit cell, and how many valence bands can be expected?
Sodium ([Ne] 3s¹3pº) forms a simple cubic (sc) primitive crystal structure, in which Na atoms are arranged at the corners of a cube. a) How many atoms are contained in the unit cell, and how many valence bands can be expected?
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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2.
Answer ALL parts a) - c).
Sodium ([Ne] 3s¹3pº) forms a simple cubic (sc) primitive crystal structure, in which Na atoms are arranged at the corners of a cube.
a) How many atoms are contained in the unit cell, and how many valence bands can be expected?
b) Sketch the crystal orbitals at the special points ï'(0,0,0), X(1/2,1/2,0), and M(1/2,1/2,1/2), and hence draw the corresponding band structure along T-X-M-T.
c) With the aid of a diagram, explain how the band structure would change if the cube was distorted into a rhombohedron by elongation along a body diagonal?
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