Lesson 4.2.2.8

4.2.2.8 Metals as conductors Quiz: AQA Chemistry, Unit 2

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.2.2.8, Metals as conductors: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 2: Bonding, structure, and the properties of matter, written with Revision Ninja.

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The 20 questions

  1. What carries electrical charge through a solid metal?

    • Fixed protons
    • Positive ions
    • Shared neutrons
    • Delocalised electrons

  2. How is thermal energy primarily transferred through a metal?

    • Vibrating fixed ions
    • Covalent bond waves
    • Delocalised electrons
    • Molecular collisions

  3. Which material is a good conductor because it has delocalised electrons?

    • Diamond
    • Silicon dioxide
    • Copper
    • Sulfur

  4. Why does diamond not conduct electricity?

    • Delocalised protons
    • Free mobile ions
    • Weak covalent bonds
    • No delocalised electrons

  5. Which particle transfers heat along a heated metal rod?

    • Delocalised electrons
    • Atomic nuclei
    • Localized electrons
    • Protons

  6. What moves through a metal wire when an electrical current flows?

    • Delocalised electrons
    • Atomic layers
    • Positive metal ions
    • Neutrons

  7. Why does a copper cooking pan conduct heat very quickly?

    • Rigid covalent bonds
    • Fixed molecules
    • Ionic lattices
    • Delocalised electrons

  8. Why does a metal spoon feel hotter in hot soup than a plastic handle?

    • Ionic bonding
    • Higher melting point
    • Delocalised electrons
    • Greater density

  9. Which feature explains both electrical and thermal conduction in metals?

    • Strong ionic bonds
    • Delocalised electrons
    • Fixed atoms
    • Rigid layers

  10. What allows metals to conduct electricity unlike solid ionic compounds?

    • Covalent bonds
    • Mobile ions
    • Delocalised electrons
    • Fixed atoms

  11. Which term describes electrons in metals that are free to move through the structure?

    • Localised
    • Delocalised
    • Ionised
    • Covalently bonded

  12. What feature of metals allows them to conduct thermal energy efficiently?

    • Covalent bonds
    • Delocalised electrons
    • Fixed ions
    • Intermolecular forces

  13. Which particles carry electrical charge through a copper wire?

    • Neutral atoms
    • Protons
    • Positive ions
    • Delocalised electrons

  14. How is thermal energy transferred rapidly through a metal rod?

    • Ionic diffusion
    • Molecular collisions
    • Atomic vibrations
    • Delocalised electrons

  15. What allows electrons to move freely through the entire structure of a solid metal?

    • Vapourisation
    • Ionisation
    • Delocalisation
    • Covalent bonding

  16. What structural feature makes silver a good thermal conductor while wood is not?

    • Hydrogen bonds
    • Delocalised electrons
    • Simple molecules
    • Ionic lattices

  17. What do delocalised electrons do when a metal is heated at one end?

    • Emit photons
    • Form bonds
    • Transfer energy
    • Gain protons

  18. What forms the electrical current when a voltage is applied across a copper wire?

    • Electron flow
    • Proton transfer
    • Neutron drift
    • Ion flow

  19. Why are metals used for electrical wiring?

    • Soft texture
    • Rigid lattice
    • High solubility
    • Free electrons

  20. What is the primary cause of high thermal conductivity in metals?

    • Electron mobility
    • Fixed atoms
    • High density
    • Strong ionic bonds

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