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Unformatted text preview: a. neutral, single, or multiply charged ions b. close and loosely packed atoms c. isotopes d. quantum pairs ____ Face centered cubic (FCC) and hexagonal close packed (HCP) unit cells a. are each composed of close packed planes b. have identical atomic packing factors c. have different numbers of close packed directions d. all of the above Direction/Plane Question Indicate the direction indices for the crystallographic direction indicated by the vector. Use the correct notation for directions. Calculation Question Rhodium has an atomic radius of 0.1345 nm, a density of 12.41 g/cm 3 and an atomic weight of 102.91 g/mol. By calculation, determine whether rhodium is BCC or FCC. Calculation Question Al is FCC. The atom radius is 0.286 nm and the x-ray wavelength is 0.1524 nm. Find the diffraction angle 2 θ for the 2 nd diffraction peak....
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This note was uploaded on 02/20/2010 for the course MSE 200 taught by Professor Wholedepartment during the Spring '08 term at N.C. State.
- Spring '08