10.3 Period 3 Oxides Summary of the properties of Period 3 oxides. Reaction with water, H2O Sodium oxide reacts exothermically with cold water to form sodium A strongly alkaline solution of sodium hydroxide is produced. Na2O(s) + H2O(l) → 2NaOH(aq) ; pH = 13...
10.4 Period 3 Chlorides Summary of the properties of Period 3 chlorides Reaction with water, H2O Sodium chloride dissolves in water to form a neutral solution of sodium chloride. NaCl(s) + aq → Na⁺(aq) + Cl⁻(aq) ; pH = 7 Magnesium chloride dissolves in water...
10.2 Periodicity in Chemical Properties Reaction with oxygen gas, O2 Sodium burns on heating with an orange-yellow flame to form white sodium oxide 4Na(s) + O2(g) → 2Na2O(s) Magnesium burns on heating with a brilliant white flame to form white...
10.1 Periodicity in Physical Properties What is periodicity? 1) Periodicity is the recurrence of similar properties at regular intervals when the elements are arranged in increasing atomic number. Variation in size of atoms Covalent radius is half the...
CHAPTER 10: Chemical Periodicity Periodicity in Physical Properties Periodicity in Chemical Properties Period 3 Oxides Period 3 Chlorides Learning outcomes: describe qualitatively (and indicate the periodicity in) the variations in atomic radius, ionic radius,...