Question

pick out 1 from it Neutral in state [Na / Na+1]​

Answer 1

Answer:

In each of the following pairs choose the atom having the bigger size : (a) Mg (At. No. 12 ) or Cl (At. No. 17)(b) Na (At. No. 11) or K (At. No. 19)

(a) Mg is bigger in size since atomic size decreases from left to right in a period. (b) K is bigger in size since atomic size increases on going down a group