This definitions covers Key Definitions within Ionic Compounds for GCSE Chemistry. Revise Ionic Compounds in Bonding & Structure for GCSE Chemistry with 21 exam-style questions and 21 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 6 of 12 in this topic. Make sure you can use the exact wording confidently, because definition marks are often lost through vague language.
📖 Key Definitions
Giant ionic lattice: A regular, three-dimensional arrangement of alternating positive and negative ions, held together by electrostatic forces of attraction, extending in all directions with no fixed boundary.
Electrolyte: A substance that conducts electricity when dissolved in water or melted, due to the presence of free-moving ions.
Brittleness: The property of shattering rather than bending when a force is applied, caused by layer displacement bringing like charges into alignment, generating repulsion.
Practice questions for Ionic Compounds
What type of structure is found in all ionic compounds?
Explain why magnesium oxide conducts electricity when it is molten but not when it is solid.