Question

What is cause of nonmetallic character of element

Answer 1

Ans.
cause of nonmetallic character of element :-
on moving from left to right in a period non metallic character increase because as we move from left to right in a period the nuclear charge increase
due to the increase in nuclear charge, the valance electrons are pulled more strongly by the nucleus and it becomes more difficult for atoms to loose electrons.
hence non metallic character increase

Answer 2

Answer:

the elements which have a tednency  to gain electrons are known as non metals .

Explanation. ... Hence, the non-metallic character increases across a period. As we move down the group, the non-metallic character decreases due to increase in the atomic size..