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← 3.2 Chemical Families

Halogens: displacement and uses

General Science · Grade 10 · about 40 minutes

Seven outer electrons, a colour that darkens down the group, and a test-tube proof of who is more reactive.

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  • 9 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
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Other lessons in this sub-strand

  1. The reactive families: alkali metals and halogens
  2. Noble gases, transition metals and how elements are used
  3. Families and outer electrons
  4. Alkali metals with water
  5. The alkaline earth metals
  6. Halogens: displacement and uses
  7. Noble gases and the full shell
  8. Transition metals, alloys and uses