A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2023 · Q131 Mark

Which statement about the first ionisation energies of magnesium and neon is correct?

AMagnesium has the greater numerical value and both are endothermic.

BMagnesium has the greater numerical value and both are exothermic.

CNeon has the greater numerical value and both are endothermic.

DNeon has the greater numerical value and both are exothermic.

✓ Correct answer

C: Neon has the greater numerical value and both are endothermic.

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2023 Paper 1 Variant 2, question 13.

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