Compute the number of electrons that each aluminum atom donates, on average, to a bulk piece of aluminum metal. additional information is provided below. remember that your answer here is literally just a count of electrons. remember that these donated electrons are considered free to conduct in metals, and they are what is counted in the electron density term of the drude model (the n variable in that equation stands for # of free electrons per unit volume the count of them per unit volume). in the equation for density of a material, n stands for a count of atoms in the volume being considered, v. for cases where we consider a unit cell as the volume of interest, n would equal the number of atoms per unit cell. so if you can compute the count of free electrons per unit volume and separately compute the count of atoms per unit volume, you will be in a position to compute the number of free electrons donated by an aluminum atom, on average. room temperature data for aluminum: the resistivity of aluminum is 2.63x10-8 ω-m the electron mobility of aluminum is 0.0012 m2/(v-s) the mass density of aluminum is 2.7 g/cm3 the atomic weight of aluminum is 27 g/mol