Metals consist of giant structures of atoms arranged in a regular pattern.
The electrons from the outer shells of the metal atoms are delocalised, and are free to move through the whole structure. This sharing of delocalised electrons results in strong metallic bonding.
Properties of metals
The structure and bonding of metals explains their properties:
they are electrical conductors because their delocalised electrons carry electrical charge through the metal
they are good conductors of thermal energy because their delocalised electrons transfer energy
they have high melting points and boiling points, because the metallic bonding in the giant structure of a metal is very strong - large amounts of energy are needed to overcome the metallic bonds in melting and boiling
Explain why metals can conduct electricity.
Metals conduct electricity because they have delocalised electrons. These carry electrical charge through the metal.