METALS: Giant structure of positive ions surrounded by a sea of delocalised electrons
Diagram:
Diagram Showing a Metallic Lattice
PROPERTIES OF METALS:
sPROPERTY | REASON |
HIGH MELTING AND BOILING POINT | There are many strong metallic bonds in giant metallic structure so large amounts of heat energy is needed to overcome forces and break down bonds |
GOOD CONDUCTORS OF ELECTRICITY | Delocalised electrons are free to move to conduct an electric charge when a potential difference is applied across the Metal |
MALLEABLE AND DUCTILE | Layers of positive ions can easily slide over one another and take up different positions. Delocalised electrons will move with them so metallic bonds are not broken |
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