RevTree
#34

Bonding, structure and properties of matter

Paper 1 · Apply

Key steps (method)

  • Identify the bonding type: ionic / covalent / metallic.
  • Link structure → properties (mp/bp, conductivity, hardness).
  • For ionic, discuss electrostatic attraction and giant lattice.
  • For covalent, distinguish simple molecular vs giant covalent.

Common mistakes

  • Saying ionic bonds are “shared” electrons (they’re transfer + attraction).
  • Confusing intermolecular forces with covalent bonds.
  • Forgetting ionic compounds only conduct when molten/aqueous.

Exam-style questions (quick)

  1. Explain why graphite conducts electricity but diamond does not.
  2. Describe bonding and structure in sodium chloride and explain its melting point.
  3. Compare the properties of a simple molecular substance and a polymer.