This definitions covers Key Definitions within Ionic Bonding for GCSE Chemistry. Revise Ionic Bonding in Bonding & Structure for GCSE Chemistry with 35 exam-style questions and 20 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 7 of 16 in this topic. Make sure you can use the exact wording confidently, because definition marks are often lost through vague language.
📖 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.
Practice questions for Ionic Bonding
Which combination of elements forms an ionic compound?
Describe the structure of an ionic compound and explain why ionic compounds have high melting points. [3 marks]