A-LevelChemistryChemical periodicity9701/12 · Oct/Nov 2022 · Q171 Mark

Element X requires strong heating to react with oxygen. Element X reacts with chlorine to give a covalently-bonded chloride. What could be the identity of element X?

Amagnesium

Bphosphorus

Csodium

Dsilicon

✓ Correct answer

D: silicon

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2022 Paper 1 Variant 2, question 17.

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