Question

Give reason to explain why atomic radii decrease from Li to F. ​

Answer 1

Explanation:

Give reason to explain why atomic radii decrease from Li to F. (a) It is because nuclear chargeincreases due to increase inatomic number, therefore, force of attraction between nucleus and valence electrons increases, i.e. effective nuclear charge increases, hence atomic radii decrease from Li to F.

Answer 2

because the nuclear charge increase left to right across a period which causes the nucleus to shrink. Nuclear charge is the positive charge which increases left to right hence it attracts the negatively charged electrons which causes shrinkage.