Question

What periodicity is observed is about valency when we move left to right along a period?

Answer 1

Explanation:

heya..

here is ur answer..

Valency is the combining capacity of an element. When we move from left to right along a period, we can see that the valency increases by 1 to 4 

i hope its help u

Answer 2

Answer:

Valency increases when we move left to right along a period.

Hope it helps uh❤