Question

Atomic number of an element is 16. Predict.
(i) the number of valence electrons in its atom (ii) its valency
(iii) its group number (iv) whether it is a metal or a non-metal
(v) the nature of oxide formed by it. (vi) the formula of the chloride.

Answer 1

The element with atomic number Z = 16 is sulphur. The electronic configuration of the element is 2, 8, 6
(i) The number of valence electrons is 6
(ii) The valency of the element is 2 (8 - 6 = 2)
(iii) The group number of the element is 16.
(iv) The element is a non-metal.
(v) Since the element is non-metal, its oxide is acidic in nature. Actually, two oxides are formed. These are `SO_(2)" and "SO_(3)`. Both are of acidic nature.
(vi) The formula of the chloride is `SCl_(2).`