At room temperature, monovalent copper has a mass density m = 8.95gcm3 and an electrical resistivity = 1.55108 m. If the atomic mass of

At room temperature, monovalent copper has a mass density ρm = 8.95gcm−3 and an electrical resistivity ρ = 1.55×10−8 Ωm. If the atomic mass of copper is 1.06×10−25 kg, calculate (a) the concentration of the conduction electrons