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Calculate the number of atoms in 1 mm of pure lead. Calculate the radius of a tantalum atom, given that Ta has a BCC crystal structure, a density of 16.6 g/cm3, and an atomic weight of 180.9 g/mol. Determine the indices for directions A and B shown. Determine the Miller indices for the planes A and B shown. Determine the four-index indices for directions B and C shown in the hexagonal unit cell. Determine the four-index indices for the plane shown in the hexagonal unit cell. Compute the theoretical volume density of pure iron and explain why the computed density is different than the experimental value found inside the front cover of textbook. Slip of atoms in plastic deformation of FCC metals occurs along (110) directions that have the highest linear density of atoms in crystals. Compute the linear density of atoms for copper along [110]. Slip of atoms in plastic deformation of FCC metals occurs in {1 1 1} planes that have the highest planar density of atoms in crystals. Compute the planar density of atoms for copper in (111). The x-ray diffraction pattern of an unknown metal is given. The monochromatic x-radiation used has a wavelength of 0.1542 nm. Determine the type of crystal structure, the atomic radius, and identify the possible element species.
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