Question

10. (15 pts) Precious metal Gold (Au) has a face-centered cubic (FCC) crystal structure. Use the

data below to answer the questions:

Avogadro's Number = 6.023 * 1023 atoms/mole

Atomic Number = 79

Atomic Mass = 197.00 g/mole

Atomic radius = 0.144 nm

(a) What is the lattice constant of gold?

(b) What is the linear density in the [101] direction?

(c) What is the planar density of the (1 1 1) plane?

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