(c) The diamond lattice stnicture is the basic building block in semiconductors such as silicon {Si}. (i) Sketch the diamond structure. [5 marks] (ii) From the sketch. describe and calculate that the number of atoms in one cell of a diamond structure. [1' marks] [iii] Calculate the density of atoms in the silicon in terms of atomsl'ma. Given that the lattice constant is 0.5430'Inm for silicon. [5 marks]