Chemistry 0620 · IGCSE · Metallic bonding

Metallic bonding — practice question

Magnesium is classified as a metal.
(a)[3]

Describe the structure and bonding present in magnesium.

(b)[2]

Why is solid magnesium able to conduct electricity?

(c)[2]

Why does magnesium show malleability?

(d(i))[3]

Complete the diagrams so that they show the electronic structures of the ions in magnesium sulfide. Include the charges on the ions.

(d(ii))[2]

State the conditions under which magnesium sulfide conducts electricity. Explain why magnesium sulfide is able to conduct electricity in those conditions.

Worked solution & mark scheme

This 12-mark question has a full step-by-step worked solution and mark scheme. One marking point: A regular array, or lattice, of positive (Mg^{2}⁺) ions

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