10. (15 points) An FCC metal has the atomic weight of 75.6 g/mol and the atomic radius of

0.129 nm, compute its theoretical density.

11. (15 points) A hypothetical alloy has the following properties, determine whether it has

BCC, FCC or SC crystal structure.

Atomic weight = 77.4 g/mol

Density = 8.22 g/cm³

Atomic Radius = 0.125 nm