Copper has the structure of a typical metal. It has a lattice of positive ions and a “sea ‘of mobile electrons. The lattice can accommodate ions of a different metal.
Give a different use of copper that depends on each of the following.

(i) Ability of the ions in the lattice to move past each other (1m)

(ii) Presence of mobile electrons (1m)

(iii) Ability to accommodate ions of a different metal in the lattice