a. Discuss the difference between a lattice, basis and crystal structure. Feel free to use diagrams...

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a. Discuss the difference between a lattice, basis and crystal structure. Feel free to use diagrams to aid your answer. (L2 - 5 points) b. Consider the cubic crystal system. Justify how the line [hk] is perpendicular to the (hk) plane. (L2-5 points) c. Niobium (Nb) has the body-centered cubic (BCC) crystal with a lattice parameter a = 0.3294 nm. Find the planar concentrations as the number of atoms per nm² of the (100), (110), and (111) planes and indicate which plane has the most concentration of atoms per unit area? (L2 - 10 points) 2/3 d. Sometimes the number of atoms per unit area nwfice on the surface of a crystal is estimated by using the relation "surface=ulk where nuk is the concentration of atoms in the bulk. Compare nrface values with the planar concentrations that you calculated in (c) above and discuss the difference. (L2-5 points) [Note: The BCC (111) plane does not cut through the center atom and the (111) plane has one- sixth of an atom at each corner.] a. Discuss the difference between a lattice, basis and crystal structure. Feel free to use diagrams to aid your answer. (L2 - 5 points) b. Consider the cubic crystal system. Justify how the line [hk] is perpendicular to the (hk) plane. (L2-5 points) c. Niobium (Nb) has the body-centered cubic (BCC) crystal with a lattice parameter a = 0.3294 nm. Find the planar concentrations as the number of atoms per nm² of the (100), (110), and (111) planes and indicate which plane has the most concentration of atoms per unit area? (L2 - 10 points) 2/3 d. Sometimes the number of atoms per unit area nwfice on the surface of a crystal is estimated by using the relation "surface=ulk where nuk is the concentration of atoms in the bulk. Compare nrface values with the planar concentrations that you calculated in (c) above and discuss the difference. (L2-5 points) [Note: The BCC (111) plane does not cut through the center atom and the (111) plane has one- sixth of an atom at each corner.]

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a A lattice is an array of points in threedimensional space generated by repeating a unit cell over ... View the full answer