A-LevelChemistryChemical periodicity9701/12 · Oct/Nov 2019 · Q121 Mark
Which diagram correctly shows the electronegativity of the elements Na, Mg, Al and Si plotted against their first ionisation energies? [Figure 12.1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A[Diagram plotting electronegativity vs first ionisation energy for Na, Mg, Al, Si, showing Al with lower first ionisation energy than Mg]
B[Diagram plotting electronegativity vs first ionisation energy for Na, Mg, Al, Si, showing Al with higher first ionisation energy than Mg]
C[Diagram plotting electronegativity vs first ionisation energy for Na, Mg, Al, Si, showing Al with higher electronegativity than Si]
D[Diagram plotting electronegativity vs first ionisation energy for Na, Mg, Al, Si, showing Al with lower electronegativity than Mg]
✓ Correct answer
B: [Diagram plotting electronegativity vs first ionisation energy for Na, Mg, Al, Si, showing Al with higher first ionisation energy than Mg]
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