CAIE IGCSE Chemistry 9.2.1 Metal uses to properties: aluminium

Practise matching aluminium uses to physical properties, from low-density aircraft parts to overhead cables and food containers.

Exam points

link aircraft manufacture to aluminium's low density rather than conductivity or recycling
choose aluminium for overhead cables using both low density and good electrical conductivity
recognise aluminium in food containers and relate its use to resistance to corrosion

[Maximum number: 1]

Iron is a transition element. Potassium is a Group I element.

Transition elements and Group I elements have some similar physical properties.

They can both:
- be hammered into a shape
- conduct electricity
- be stretched into wires.

Suggest why copper, rather than other transition elements, is used for wires which conduct electricity.

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9.2.1—Metal uses to properties: aluminium question 1