Write the symbols of the following elements & radicals along with their valencies.

(a) sodium

(b) magnesium

(c) chlorine [chloride]

(d) nitrate

(e) sulphite

(f) aluminium

(g) oxygen [oxide]

(h) bromine [bromide]

(i) zinc

(j) sulphur [sulphide]

(k) sulphate

(l) hydroxide

(m) calcium

(n) carbonate

(o) potassium

(p) phosphate

(q) iodine [iodide]

Valency list:

(i) 1⁺

(ii) 2⁺

(iii) 3⁺

(iv) 1^-

(v) 2^-

(vi) 3^-

Symbols along with valencies of mentioned elements and radicals is as follows :

(a) Sodium — Na¹⁺

(b) Magnesium — Mg²⁺

(c) chlorine [chloride] — Cl^1-

(d) Nitrate — NO₃^1-

(e) sulphite — SO₃^2-

(f) aluminium — Al³⁺

(g) oxygen [oxide] — O^2-

(h) bromine [bromide] —Br^1-

(i) zinc — Zn²⁺

(j) sulphur [sulphide] — S^2-

(k) sulphate —SO₄^2-

(l) hydroxide — OH^1-

(m) calcium — Ca²⁺

(n) carbonate — CO₃^2-

(o) potassium — K¹⁺

(p) phosphate — PO₄^3-

(q) iodine [iodide] — I^1-