The differences in the arrangement of atoms affect the properties of the material. Molecular compounds, sometimes called covalent compounds, display a wide range of physical properties due to the diff...The differences in the arrangement of atoms affect the properties of the material. Molecular compounds, sometimes called covalent compounds, display a wide range of physical properties due to the different types of intermolecular attractions such as different kinds of polar interactions. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound.
