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A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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The Reactivity Series

Science · Matter & Materials · conceptual

Order common metals in the reactivity series and explain how a more reactive metal displaces a less reactive one; describe how carbon is used to extract metals from their oxides in industry

What mastery looks like

  • Recalls the order of common metals in the reactivity series (potassium to gold)
  • Predicts whether a displacement reaction will occur given two metals
  • Explains why carbon can be used to extract iron from iron oxide but not aluminium from aluminium oxide
  • Links the reactivity series to the history of metal use (gold found free, iron smelted, aluminium electrolytic)

Check your understanding

If The Reactivity Series was asked why humans used gold and copper before iron and aluminium, could they explain how a metal's reactivity determines how easy it is to extract — and why carbon can extract some metals but not others?