When the atoms of non-metal elements react to form compounds, they share electronsin their outer shells. Then each atoms gets a full outer shell of electrons. The bonds formed like this are called covalent bonds
- Substance made up of simple moleculs have low melting points and boiling points.
- The forces between simple molecules are small. These are weak intermolecular forces explain their low melting point and boiling points.
- simple molecules have no overall charge