Small molecules - AQA A covalent bond is a shared pair of electrons. Covalent bonding forms molecules. Substances with small molecules have low melting and boiling points, and do not conduct ...

The type of structure depends on the type of bonding. There are two different structures for covalent bonding. When ionic bonding forms between a metal and a non-metal, lots of ions group together to ...

In the reaction, the bonds in the methane and oxygen molecule come apart, the atoms rearrange and then re-bond to form water and carbon dioxide. The little number written at the lower right after an ...