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08/10/2021 5:05 pm
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(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.
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08/10/2021 5:06 pm
(a) On going down in a group of the periodic table, the electropositive character of elements increases.
(b) (i) In a group, all the elements have the same valency.
(ii) In a period, on moving from left to right, the valency of elements first increases from 1 to 4 and then decreases to zero.