Question

What is the perioddic trend in the
variation of valency while giong from
left to right within a period?
1 goes increasing upto 1 to 7
2 goes decreasing from 1 to 7
3 Increases upto 4 and then goes
on decreasing
4 Remains constant​

Answer 1

Answer:

3. increases upto 4 and then goes on decreasing

PLZ DON'T FORGET TO MARK IT AS BRAINLIST