Properties of ionic compounds

Chemistry (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Foundation · Specification point · 5.2.2.3 · Bonding, structure, and the properties of matter · How bonding and structure are related to the properties of substances

Melting, boiling and electrical conductivity of ionic compounds

Giant ionic lattice structure

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5.2.2.3 Properties of ionic compounds

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$Ionic compounds have regular structures (giant ionic lattices) in which there are strong electrostatic forces of attraction in all directions between oppositely charged ions. These compounds have high melting points and high boiling points because of the large amounts of energy needed to break the many strong bonds. When melted or dissolved in water, ionic compounds conduct electricity because the ions are free to move and so charge can flow. Knowledge of the structures of specific ionic compounds other than sodium chloride is not required.$

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Ionic compounds have regular structures (giant ionic lattices) in which there are strong electrostatic forces of attraction in all directions between oppositely charged ions. These compounds have high melting points and high boiling points because of the large amounts of energy needed to break the many strong bonds. When melted or dissolved in water, ionic compounds conduct electricity because the ions are free to move and so charge can flow. Knowledge of the structures of specific ionic compounds other than sodium chloride is not required.

Properties of ionic compounds (5.2.2.3) | AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Foundation | KnowledgeSet