Some elements in the solid phase exist in different forms that vary in
their physical properties. For example, at room temperature, red
phosphorus has a density of 2.16 g/cm3 and white phosphorus has a
density of 1.823 g/cm3. Compare the number of atoms per cubic
centimeter in red phosphorus with the number of atoms per cubic
centimeter in white phosphorus.
1) Since red phosphorus has the higher density, it contains less atoms per cubic
centimeter.
2) Since red phosphorus has the higher density, it contains more atoms per cubic
centimeter.
3) Since red phosphorus has the lower density, it contains less atoms per cubic
centimeter.
4) Since red phosphorus has the lower density, it contains more atoms per cubic
centimeter.