Consider a copper-nickel solid solution containing (4.00x10^1) at% copper. How many atoms per cubic centimeter (atoms/cm^3) of copper are there in this solution?
Take the density of both Cu and Ni to be 8.90 g/cm3.
Use scientific notation with 3 significant figures (X.YZ x 10^n). Note that Avenue automatically enters x10, so you only need to enter X.YZ and n.