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Given that a solid crystallizes in a face centered cubic structure that is 4.50 Å on...

Given that a solid crystallizes in a face centered cubic structure that is 4.50 Å on each side, answer questions:

1) How many total atoms are there in each unit cell?

2) What is the volume of one unit cell in Å3?

3) Assuming that the atoms are spheres and the radius of each sphere is 1.59 Å, what is the volume of one atom in Å3? (Vsphere = 4/3πr3.)

4) Therefore, what volume of atoms are in one unit cell?

5) Based on your results from parts (b) and (d), what is the packing efficiency of the solid expressed as a percentage?

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