Question

9.   Give characteristics of periods in periodic table


​

Answer 1

Answer-

The characteristics are-

In a period as we go from left to right:

(a) Valence electrons → Goes on increasing 1,2,3,4,5,6,7,8

(b) Valency → Valency first increases and then decreases 1,2,3,4,3,2,1,0

(c) Size of atom → Size of atom goes on decreasing

(d) Metallic character → Decreases

(e) Non-metallic character → Increases