Metallic Bonding 

• This type of bonding occurs between METALS.
• The outer shell electrons are DELOCALISED and free to move. This creates a SEA OF DELOCALISED ELECTRONS.
• Within the sea of electrons, there are POSITIVE METAL IONS which are arranged in a REGULAR PATTERN in a GIANT STRUCTURE.
• The ELECTROSTATIC ATTRACTION between the POSITIVE METAL IONS and the SEA OF DELOCALISED ELECTRONS are the METALLIC BONDS which hold the structure together.