Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 5 - Chapter 5 Periodic Classification of Elements

Question 93 Exercise

(a) How does the electropositive character of elements change on going down in a group of the periodic table?

(b) State how the valency of elements varies (i) in a group, and (ii) in a period, of the periodic table.


(a) The electropositive character of elements increases on going down the group of the periodic table.

(b) (i) Valency of the elements remains the same along the group.

(ii) The valency of the element first increases from 1 to 4 and then decreases to zero on moving from left to right across the period.

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