When do covalent bonds form?
When two or more non-metals bond.
Covalent bonds form when two or more non-metals bond. The non-metal elements perfer to share electrons instead of one gaining and one losing (ionic bonding). The difference in electronegativity for non-metal elements is NOT large enough for one compound to gain full control of the electrons. The sharing of electrons is benificial for reaching a full octect, allowing them to become more stable than in their elemental form.