(a) Calculate the number of free electrons per cubic centimeter in copper, assuming that the maximum energy of these electrons equals the Fenni energy (m* = mol.)
(b) How does this result compare with that detennined directly from the density and the atomic mass of copper? Hint: Consider equation (7.5)
(c) How can we correct for the discrepancy?
(d) Does using the effective mass decrease the discrepancy?