Chemistry · Oct / Nov 2024 · Paper 12 · Question 27

Substance X conducts electricity in the solid state. Substance X is malleable. Which statement is correct?

1. AX conducts electricity by the movement of electrons between layers of negative ions.
2. BX conducts electricity by the movement of positive ions through a giant lattice.
3. CX has a giant lattice of positive ions in a ‘sea’ of delocalised electrons.
4. DX has layers of atoms with delocalised electrons between the layers.

As printed in the paper