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Learning objective

Explain why ionic compounds usually have high melting points and high boiling points.

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Topic

How bonding and structure are related to the properties of substances

Subtopic

Properties of ionic compounds

Aqa Gcse ChemistryBonding, structure, and the properties of matter

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Quick explanation

Explain why ionic compounds usually have high melting points and high boiling points

  • This point belongs to How bonding and structure are related to the properties of substances, especially Properties of ionic compounds.
  • You need to be able to explain why ionic compounds usually have high melting points and high boiling points.
  • The key ideas to know are high melting point, ionic compound, and high boiling point.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

high melting pointionic compoundhigh boiling point

Why it matters

This objective helps connect Properties of ionic compounds to exam-style questions, flashcards, and revision notes for How bonding and structure are related to the properties of substances.

Quick student answer

How do you explain ionic compounds usually have high melting points and high boiling points?

Direct answer

In Chemistry, this page helps you answer questions about ionic compounds usually have high melting points and high boiling points within How bonding and structure are related to the properties of substances. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are ionic compound and high melting point.

Key terms

  • ionic compound: A substance formed from the electrostatic attraction between oppositely charged ions, typically resulting in a regular giant ionic lattice structure.
  • high melting point: The temperature at which an ionic compound transitions from solid to liquid, usually due to strong attractions between ions.

Common trap

Misunderstanding Ionic Compound Properties: Emphasize that the high melting and boiling points of ionic compounds are due to the strong electrostatic attractions between oppositely charged ions, not their size.

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