If the atomic radius of a metal that has the face centred cubic (FCC) crystal structure is (3.70x10^-1) nm, calculate the volume of its unit cell (in nm^3).

a. Molybdenum at 20°C has Body Centered Cubic (BCC) crystal structure with an atomic radius, R of 0.140 nm. Draw the BCC crystal, identify the relationship between atomic radius, R and lattice constant, a. Calculate the atomic packing factor (APF) for Molybdenum at 20°C. b. What is grain boundary and state the importance of grain boundaries

Lead and Aluminum both have FCC crystal structures.  Given the following information and knowing that solid aluminum has a density of 2.71 g/cm3, determine the density of solid lead in g/cm3   Atomic Weight (amu) Atomic Radius (nm) Aluminum 26.98 0.143 Lead 207.2 0.175

Consider an fcc lattice with cube side length 1.2 Å. What are the planar densities of the (110) and (100) planes respectively (in units of 1020 atoms/m?): (This question has only one correct answer) O a. (100) = 2.08, (110) = 0.98 O b. (100) = 1.39, (110) = 0.98 O c. (100) = 1.39, (110) = 1.20 O d. (100) = 0.98, (110) = 1.39