Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
(a) Mg and N2
(b) Li and O2
(c) Al and Cl2
(d) K and O2
Ans.
(a)Mg3N2 Magnesium nitride
(b) Li2O Lithium oxide
(c) AICI3 Aluminium chloride
(d) K2O Potassium oxide