1) (a) Find the areal density of atoms on the (100) and (110) plane of a simple cubic lattice. Assume that the atoms are solid spheres. 3 marks (b) Find the

areal density of atoms on the (100) and (110) plane of a body-centered cubic lattice. Assume that the atoms are solid spheres. 3 marks Areal density is the number of atoms per unit area of the plane.