How many copper atoms are there in a solid cube of copper which is 1.00 cm on each side? What is the approximatesize of atom ? The atomic mass of copper is 63.6 g/mol and the density is 8.96 g/cm3.
The volume of the copper cube is 1 cm3. So the mass is 8.96 g. = mole of copper.
Now 1 mole copper is equal to number of atoms. Therefore number of atoms in the cube is .
Now the approximate size of an atom is cm3
Now 1 mole copper is equal to number of atoms. Therefore number of atoms in the cube is .
Now the approximate size of an atom is cm3