A-LevelChemistryChemical periodicityOct/Nov 2013Paper 1 Q321 Mark
Use of the Data Booklet is relevant to this question. Carbon and nitrogen are adjacent in the Periodic Table. Which properties do they both have? 1. There is an empty 2p orbital in one atom of the element. 2. The principal quantum number of the highest occupied orbital is 2. 3. They form compounds in which their atoms form bonds with four other atoms.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct Answer
The correct answer is C: 2 and 3 only are correct
📋 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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