Question: 7. Calculate the atomic concentration (in cm-3) and density (in g/cm) of the following, using their lattice constants, atomic weights, and Avogadro's number: (a)

7. Calculate the atomic concentration (in cm-3) and density (in g/cm) of

7. Calculate the atomic concentration (in cm-3) and density (in g/cm) of the following, using their lattice constants, atomic weights, and Avogadro's number: (a) Si (lattice constant = 5.43 ; atomic weight = 28.1) (b) Ge (lattice constant = 5.66 ; atomic weight = 72.6) (c) GaAs (lattice const. = 5.65 ; atomic weight Ga = 69.7; atomic weight As = 74.9) (d) InP (lattice constant 5.87 ; atomic weightn = %3D 114.8; atomic weight p = 31) %3D

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