More Lessons for IGCSE Chemistry
A series of free IGCSE Chemistry Activities and Experiments (Cambridge IGCSE Chemistry).
Metals - Structure and Properties
Metals atoms have low electronegativity and when they bond they share their electrons leaving a lattice of cations surrounded by a 'sea of delocalised electrons'.
This structure explains metals' properties: high density, lustrous, hard, high melting and boiling points, malleable, ductile, good conductors of heat and electricity.
Metals and their Alloys
Describe the properties of metals: strong, high melting point, good conductors of heat and electricity.
Unique Properties of some metals.
Alloys - a material made from a mixture of metals (include carbon)
Examples of Iron Alloys
Why do the properties of alloys change?
What are smart alloys?
Evaluate the importance of recycling metals.
Uses of Metals
Uses of aluminium:
– in the manufacture of aircraft because of its strength and low density
– in food containers because of its resistance to corrosion
Uses of copper:
- electrical wiring and in cooking utensils
Uses of mild steel:
car bodies and machinery
Uses of stainless steel:
chemical plant and cutlery
Uses of zinc:
Galvanising and for making brass
Properties of Alkali Metals and Alkaline Earth Metals
Group 1 - Alkali Metals
Group 2 - Alkaline Earth Metals
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