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Learning objective

Explain how positive ions, called cations, and negative ions, known as anions, are formed.

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  • Read the explanation.
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  • Practise with linked questions.
Cambridge IGCSE ChemistryAtoms, elements and compoundsCore content

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Quick explanation

Explain how positive ions, called cations, and negative ions, known as anions, are formed

  • This point belongs to Ions and ionic bonds, especially Ions and ionic bonds outcomes.
  • You need to be able to explain how positive ions, called cations, and negative ions, known as anions, are formed.
  • The key ideas to know are Describe and Identify.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeIdentify

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This objective helps connect Ions and ionic bonds outcomes to exam-style questions, flashcards, and revision notes for Ions and ionic bonds.

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Paper 3 structured question: Ions and ionic bonds

Paper 3Theory (Core)1 marks

Description

Ionic Bonding

Ionic bonding occurs when cations and anions attract each other due to their opposite charges.

  1. a

    State the charge of a cation.

    Aim for approximately 1 distinct marking point.

    [1]
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