Question: 4. (12 points) (a) Gold crystallizes in a face-centered cubic unit cell. How many Au atoms are in a unit cell? (b) What is the

4. (12 points) (a) Gold crystallizes in a face-centered cubic unit cell. How many Au atoms are in a unit cell? (b) What is the coordination number of each Au atom? (c) Indicate the type of solid (molecular, ionic, or covalent-network) for each compound: diamond, CaCl2, chloroform (CHC13) (d) What technique is used to determine crystal structures of solids

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