3. for an FCC lattice calculate the structure factor Sk.

1. Show that the atomic packing factor for FCC is 0.74.2. Show that the atomic packing factor for BCC is 0.68.3. Iron has a BCC crystal structure, an atomic radius of 0.124 nm, and an atomic weight of 55.85 g/mol. Compute and compare its theoretical density with the experimental value, 7.87 g/cm3.4. Rhodium has an atomic radius of 0.1345 nm and density of 12.41 g/cm3. Determine whether it has an FCC or BCC crystal structure.5. The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318 nm, respectively. If the density, atomic weight, and atomic radius are 7.30 g/cm3, 118.69 g/mol, and 0.151 nm, respectively, compute the atomic packing factor.

Define the term body-centered cubic lattice?

9. How would you expect the mechanical properties of a metal with an FCC structure to differ from one with a BCC structure? Why?