A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2020 · Q311 Mark

Carbon and nitrogen are adjacent in the Periodic Table. Which properties do they both have? 1 There is an empty 2p orbital in each atom of the element. 2 The principal quantum number of the highest occupied orbital is 2. 3 They can form compounds in which their atoms form four bonds.

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

C: 2 and 3 only are correct

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2020 Paper 1 Variant 2, question 31.

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