9.2 Periodicity of chemical properties of the elements in Period 3

Describe, and write equations for, the reactions of the elements with oxygen (to give Na₂O, MgO, Al₂O₃, P₄O₁₀, SO₂), chlorine (to give NaCl, MgCl₂, AlCl₃, SiCl₄, PCl₅) and water (Na and Mg only).

Taught in: Period 3 elements with oxygen, chlorine and water · 6 questions

State and explain the variation in the oxidation number of the oxides (Na₂O, MgO, Al₂O₃, P₄O₁₀, SO₂ and SO₃ only) and chlorides (NaCl, MgCl₂, AlCl₃, SiCl₄, PCl₅ only) in terms of their outer shell (valence shell) electrons.

Taught in: Oxidation numbers in the Period 3 oxides and chlorides · 6 questions

Describe, and write equations for, the reactions, if any, of the oxides Na₂O, MgO, Al₂O₃, SiO₂, P₄O₁₀, SO₂ and SO₃ with water, including the likely pHs of the solutions obtained.

Taught in: Oxides of Period 3 with water: the acid–base ladder · 5 questions

Describe, explain, and write equations for, the acid/base behaviour of the oxides Na₂O, MgO, Al₂O₃, P₄O₁₀, SO₂ and SO₃ and the hydroxides NaOH, Mg(OH)₂ and Al(OH)₃, including, where relevant, amphoteric behaviour in reactions with acids and bases (sodium hydroxide only).

Taught in: Oxides of Period 3 with water: the acid–base ladder · 2 questions

Describe, explain, and write equations for, the reactions of the chlorides NaCl, MgCl₂, AlCl₃, SiCl₄ and PCl₅ with water, including the likely pHs of the solutions obtained.

Taught in: Chlorides of Period 3 in water — and reading bonding off the evidence · 5 questions

Explain the variations and trends in 9.2.2, 9.2.3, 9.2.4 and 9.2.5 in terms of bonding and electronegativity.

Taught in: Chlorides of Period 3 in water — and reading bonding off the evidence · 3 questions