A-LevelChemistryChemical periodicityFeb/Mar 2024Paper 1 Q161 Mark
The relative magnitude of the property X of five elements is shown. P, Q, R, S and T are all in Period 3 and have consecutive atomic numbers. The letters are not the actual chemical symbols of the elements. [Figure depicting a graph with 'X' on y-axis and 'atomic number' on x-axis, showing points P, Q, R, S, T] Which row is correct for property X and element R?
Aproperty X: electrical conductivity, element R: Al
Bproperty X: electronegativity, element R: Si
Cproperty X: melting point, element R: Al
Dproperty X: second ionisation energy, element R: Si
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of chemical periodicity 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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