For an edge of length \(x\), the volume of a cube is given by the formula \(V\) = \(x\)³. To calculate the edge of a cube: Count the number of cm³ in the top layer. There are 16 unit cubes.

Copper atoms are larger than aluminum atoms. There are fewer copper atoms than aluminum atoms in the cubes. Copper atoms are much more massive than aluminum atoms. The extra mass makes copper more ...