Question

The valency of representative elements is given by the number of
electrons in the outermost orbital and/or equal to ............. Minus
the number of outermost electrons.

Answer 1

the valency of elements which have 1or 2or 3or 4 number of electons in the valance shell is the same number as the no. of valance electrons.if the valance electrons are 5or6or7or8 it is eight -the number of valance electrons