A-LevelChemistryAtomic structureOct/Nov 2017Paper 1 Q11 Mark
In which pair do the atoms contain the same number of neutrons?
A11B and 12C
B7Li and 9Be
C24Mg and 28Si
D14N and 16O
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of atomic structure within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 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...
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