Metallic bonding

The idea

Metals have giant structures of positive ions arranged in a regular pattern, surrounded by a 'sea' of delocalised electrons that are free to move. The strong attraction between the ions and the delocalised electrons gives metals high melting points. The delocalised electrons carry charge and thermal energy, so metals are good conductors.

1. Describe the positive ions in layers.
2. Describe the delocalised electrons.
3. Link the structure to each property.

Watch out Metals conduct because electrons move, not because ions move.