Bonding & StructureExam Focus

Exam Focus

Part of Ionic CompoundsGCSE Chemistry

This exam focus covers Exam Focus within Ionic Compounds for GCSE Chemistry. Revise Ionic Compounds in Bonding & Structure for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 10 of 12 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.

Topic position

Section 10 of 12

Practice

20 questions

Recall

20 flashcards

🎯 Exam Focus

Frequently Examined

Ionic compound properties are examined very frequently. Key question patterns:

  • Explain the high melting point of an ionic compound — always reference "many strong electrostatic forces" and "large amount of energy needed" (2-3 marks)
  • Explain conductivity — distinguish between solid (no conduction, fixed ions) and molten/dissolved (conducts, free ions) — 2 marks
  • Compare two ionic compounds — which has higher melting point and why (ion charges and size) — 2-3 marks
  • Brittleness — explain in terms of layer displacement and repulsion — 2 marks

The critical phrase examiners want to see is: "ions are free to move and carry charge" for conductivity questions.

Keep building this topic

Read this section alongside the surrounding pages in Ionic Compounds. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Ionic Compounds

What type of structure is found in all ionic compounds?

  • A. Giant ionic lattice
  • B. Simple molecular
  • C. Giant covalent
  • D. Metallic lattice
1 markfoundation

Explain why magnesium oxide conducts electricity when it is molten but not when it is solid.

2 marksstandard

Quick Recall Flashcards

Why are ionic compounds brittle?
Force shifts ion layers, bringing like charges together — they repel and the structure shatters
What is a giant ionic lattice?
A regular 3D arrangement of alternating positive and negative ions extending in all directions

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