Assume that all of the unit cells of a piece of aluminum with dimensions 4in X 4in X 0.001in are arranged so that a0 is perpendicular to the foil surface. Using these given facts of aluminum:
atomic number - 13
structure - FCC
Lattice parameters = 4.04958
Atomic mass in g per mol = 26.981
Density in g per cm cubed = 2.699
Determine the total number of unit cells in the foil and the thickness of the foil in number of unit cells.