Simple Molecular Structures

These are gases, liquids or solids with low melting points. Examples include water, chlorine, oxygen…etc
The covalent bonds between the
atoms in a molecule are strong.
However, the forces of attraction between these molecules (inter-molecular forces) are weak.
They have low melting points, since not a lot of heat is needed to provide the energy for the molecules to move away from each other, hence, overcome the intermolecular forces between them.
They tend to be insoluble in water.
They are often soluble in organic solvents.
They do not conduct electricity because the molecules have no overall charge and there are no electrons mobile enough to move from molecule to molecule.