Q1: Iron has a BCC crystal structure, an atomic radius of 0.124 nm, and an atomic weight of 55.85 g/mol. If the value of density is determined to be 7.87 g/cm³, compute the theoretical density and compare it with the experimental value. Discuss your findings.
Q2: For the HCP crystal structure, show that the ideal c/a ratio is 1.633.
Q3: What are the indices for the following two planes?
Plane 1: (0.3nm, 0.6nm, 0.6nm)
Plane 2: (+x)