CAIE IGCSE Chemistry Properties of Ionic Compounds
Practise explaining ionic melting points and electrical conductivity by referring to strong lattice attractions and whether charged ions are free to move.
- Syllabus
- 2026–2028
- Course
- Chemistry 0620
Exam points
- explain high melting point through strong attractions between oppositely charged lattice ions
- explain non-conduction in a solid because its ions are held in fixed lattice positions
- explain conduction when molten or aqueous because mobile ions carry charge through the liquid
2.4.4—Properties of ionic compounds: (a) question 1
[Maximum number: 2]
The Periodic Table is a method of classifying elements.
Lithium fluoride has ionic bonding.
Give two physical properties of ionic compounds.
any two from:
physical constants: high boiling point / melting point
conductivity: conduct (electricity) when aqueous or conduct (electricity) when molten
solubility: soluble in water
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