the density of aluminum is 270x103 kgm3 Find the conductione

the density of aluminum is 2.70x10³ kg/m^3. Find the conduction-electron density for aluminum. The mass of an aluminum atom is 27.0 u.

n=? (in m^-3)

Solution

Conduction electron density is given by

n = N_A*10³*Density/Atomic Weight

n=(6.02*10²³)*10³*(2.7*10³)/27

n=6.02*10²⁸ m^-3