Metals and Non-Metals

Quick Revision

• Metals are generally malleable, ductile and good conductors of heat and electricity.
• Non-metals are generally brittle and poor conductors.
• More reactive metals can displace less reactive metals from their salt solutions.
• The reactivity series helps predict displacement reactions and extraction methods.
• Ionic compounds contain oppositely charged ions.
• Highly reactive metals are generally extracted by electrolysis.
• Corrosion is the gradual deterioration of a metal.
• Galvanisation protects iron or steel using a zinc coating.