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Unformatted text preview: 2 OH. 5. Given that silver has a face-centered cubic structure (fcc) and its density is 10.500 g/cm 3 , what is the radius of a silver atom? 6. Calculate the number of cations and anions in the fluorite unit cell shown below. What is the empirical formula of fluorite? How many formula units are there per unit cell? How would you describe the coordination of each fluoride atom? 7. A diffraction spot is recorded 50 mm vertically displaced from the center of the direct X-ray beam of = 1.08 (1 = 1 X 10-10 m), 200 mm from a crystal. Using Braggs law calculate the atomic spacing responsible for producing the diffraction. Ca (at corners of small cubes) F (at centers of small cubes)...
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