Bonding & StructureDefinitions

Key Definitions

Part of Ionic BondingGCSE Chemistry

This definitions covers Key Definitions within Ionic Bonding for GCSE Chemistry. Revise Ionic Bonding in Bonding & Structure for GCSE Chemistry with 27 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 6 of 13 in this topic. Make sure you can use the exact wording confidently, because definition marks are often lost through vague language.

Topic position

Section 6 of 13

Practice

27 questions

Recall

20 flashcards

📖 Key Definitions

Ionic bond: The electrostatic force of attraction between oppositely charged ions, formed when electrons are transferred from a metal to a non-metal.

Ion: A charged particle formed when an atom loses or gains one or more electrons.

Cation: A positively charged ion, formed when a metal atom loses electrons (e.g., Na⁺, Mg²⁺).

Anion: A negatively charged ion, formed when a non-metal atom gains electrons (e.g., Cl⁻, O²⁻).

Electrostatic attraction: The force of attraction between oppositely charged particles — the fundamental force that holds ionic bonds together.

Electron transfer: The movement of electrons from one atom to another, converting neutral atoms into ions.

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

Practice Questions for Ionic Bonding

Which combination of elements forms an ionic compound?

  • A. Sodium and chlorine
  • B. Carbon and hydrogen
  • C. Nitrogen and oxygen
  • D. Carbon and oxygen
1 markfoundation

Describe the structure of an ionic compound and explain why ionic compounds have high melting points. [3 marks]

3 marksstandard

Quick Recall Flashcards

What is an anion?
A negative ion (formed when non-metals gain electrons)
What is a cation?
A positive ion (formed when metals lose electrons)

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