5. The lattice constant of silicon is 5.43 "A. Calculate the following: (a) the number of silicon atoms in each unit cell. (b) the distance from the center of one silicon atom to the center of its nearest neighbour. (c) the number density (number/cm³) of silicon atoms.
5. The lattice constant of silicon is 5.43 "A. Calculate the following: (a) the number of silicon atoms in each unit cell. (b) the distance from the center of one silicon atom to the center of its nearest neighbour. (c) the number density (number/cm³) of silicon atoms.
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Transcribed Image Text:5. The lattice constant of silicon is 5.43 °A. Calculate the following:
(a) the number of silicon atoms in each unit cell.
(b) the distance from the center of one silicon atom to the center of its nearest neighbour.
(c) the number density (number/cm³) of silicon atoms.
(d) the mass density of silicon (g/cm³).
(e) the areal density of atoms (number/cm²) on the (110) plane.
(f) the distance between two adjacent (111) planes.
Hint: The atomic weight (relative atomic mass) of Si is 28.1, and Avogadro's number is
6.02 x 1023.
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