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Question: lab problem 1 for the cubic crystal abc internal angles...

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Lab Problem #1: For the Cubic Crystal (a-b-c), internal angles between a,b,c are 900)1 what is the coordination number (CN) and atomic packing factor? Assume the atoms touch along axes a, b and c.
Lab Problem #2: Body Centered Cubic Crystal: (a-b-c) internal angles between a,b,c are 90°. 1 One extra atom in the center of the unit cell. What is the coordination number (CN) and atomic packing factor? Assume the atoms touch along diagonal through he center of the unit cell.
Lab Problem #3, Face Centered Cubic: crystal (a-b-c). nternal angles between a,b,c are 90°.) Atoms in center of each face. what is the coordination number (CN) and atomic packing factor? Assume the atoms touch along the face of each side.
b Problem #4: An Aluminum sample has a mass of 6.0 ams How many atoms are present? ) How many atoms per unit cell? ) How many unit cells are present? ) If the density of Al is 2.7 grams/cm3 what is the volume of a unit cell? Determine the a value for the cell from the answer above Determine the atomic radius of Aluminum from the answer above in e )
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