A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2017 · Q151 Mark

The magnitude of property X of five elements from the third period of the Periodic Table, P, Q, R, S and T is shown. P, Q, R, S and T have consecutive atomic numbers. The letters do not represent the symbols of the elements. [Figure showing a graph with 'X' on y-axis and 'atomic number' on x-axis, with points P, Q, R, S, T plotted]. Which row correctly identifies property X and element R?

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Aelectrical conductivity Al

Belectronegativity Si

Cmelting point Al

Dmelting point Si

✓ Correct answer

C: melting point Al

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Topic: Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2017 Paper 1 Variant 2, question 15.

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