May/June 2026 Paper 11

2026 · 40 questions · 40 parts · 40 marks

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17Period 3 Elements Oxides ChloridesHard1 mark
The table contains some statements about Period 3 elements and their compounds. In which row are both statements correct?
statement 1statement 2
Athe electronegativity of sodium is lower than that of sulfurthe pH of dissolved sodium oxide is lower than the pH of dissolved sulfur dioxide
Bthe first ionisation energy of magnesium is lower than that of sodiumthe melting point of magnesium oxide is higher than that of sodium oxide
Cthe melting point of aluminium is higher than that of sodiumthe melting point of aluminium chloride is lower than that of sodium chloride
Dthe atomic radius of silicon is higher than that of sodiumthe melting point of silicon chloride is lower than that of sodium chloride