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Electron transfer

Electron transfer

An electron is a negatively charged subatomic particle that can transfer between species. Oxidation is the loss of electrons, while reduction is the gain of electrons. In the reaction between magnesium and silver ions, magnesium loses two electrons to form magnesium ions:

Mg→Mg2++2e− \mathrm{Mg \rightarrow Mg^{2+} + 2e^-} Mg→Mg2++2e−

. The two electrons are transferred to two silver ions, which are reduced to silver atoms:

2Ag++2e−→2Ag \mathrm{2Ag^+ + 2e^- \rightarrow 2Ag} 2Ag++2e−→2Ag

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4.1.4 Oxidation and reduction in terms of electrons (HT only) Lesson

  1. GCSE
  2. /Chemistry
  3. /4.1.4 Oxidation and reduction in terms of electrons (HT only)

Step-by-step lessons covering AQA GCSE Chemistry 4.1.4 Oxidation and reduction in terms of electrons (HT only) for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons