The structure of metals explains their high melting and boiling points and their conductivity. The properties of a metal can be modified by mixing it with another substance to form an alloy.
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.
The structure and bonding of metals explains their properties:
Explain why metals can conduct electricity.
Metals conduct electricity because they have delocalised electrons. These carry electrical charge through the metal.