Question

The part of periodic table is given below.Group no(1),(2),(3),(4),(5),(6),(7)symbol na,mg,al,si,p,s,cl (a) name the period in which all the above elements belongs.(b)how many valency electrons are present in
c.I?(c)valency of s.I is. (a)2 (b)3 (c)4 (d) 0. In brainly

Answer 1

This all elements belong to period no.3

The valency of cl is :- 1

The valency of silicon is :- (c) 4

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