A-LevelChemistryChemical periodicityFeb/Mar 2023Paper 1 Q131 Mark

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

Q: What topic does this question test?

This question tests Chemical periodicity in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

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

The correct answer is C: Neon has the greater numerical value and both are endothermic.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Chemistry Question

Topic

This multiple-choice question tests Chemical periodicity in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Feb/Mar 2023 examination, Paper 1 Variant 2.

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