Properties of Metallic Compounds (Oxford AQA IGCSE Combined Science Double Award)
Revision Note
Author
Alexandra BrennanExpertise
Chemistry
Conductivity of Metallic Compounds
Extension Tier Only
Metals consist of positively charged metal ions surrounded by a sea of delocalised electrons
Metals conduct electricity because:
The delocalised electrons are able to move through the structure
The electrons being able to move also enables the metal to conduct heat
The structure of a metal
Exam Tip
The properties of metals can be modified, sometimes significantly, by mixing it with another metal or non-metal to create and alloy.
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