Chemistry 0620 · IGCSE · Arrangement of elements

Arrangement of elements — practice question

This question concerns the Period 3 elements in the Periodic Table. The elements shown are: Na, Mg, Al, Si, P, S, Cl, Ar. For each part below, identify a Period 3 element that fits the description. Any element may be used once, more than once, or not at all.
(a)[1]

State which Period 3 element forms an oxide with a macromolecular structure.

(b)[1]

State which Period 3 element is extracted from bauxite ore.

(c)[1]

State which Period 3 element is soft, metallic, and stored in oil.

(d)[1]

State which Period 3 element exists as a green gas at room temperature and pressure.

(e)[1]

State which Period 3 element supplies an inert atmosphere in lamps.

(f)[1]

State which Period 3 element forms two different oxides in the Contact process.

(g)[1]

State which Period 3 element is non-metallic and an important part of fertilisers.

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This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “silicon, or $\text{Si}$” …

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