Covalent bonds

• Covalent bonds are formed between atoms which share electrons to form a full outer shell.
• Atoms which share electrons electrons form molecules
• A covalent bond is the electrostatic force of attraction between the nucleus of an atom and the shared pair of electrons.
• The strength of a covalent bond depends on how many pairs of electrons are being shared.
• A substance which contains a covalent is known as a molecule.
• Between non-metals only.