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Ions and ionic compounds

Ions and ionic compounds

An ion is an atom or group of atoms with an overall electric charge. Metals lose electrons to form positive ions, while non-metals gain electrons to form negative ions.

3.1.2 Formulae of compounds from ions, and state symbols Lesson

  1. GCSE
  2. /Chemistry
  3. /3.1.2 Formulae of compounds from ions, and state symbols

Step-by-step lessons on OCR GCSE Chemistry 3.1.2 Formulae of compounds from ions, and state symbols. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons