Question

Which of the following statements is correct?

Atomic size decreases down the group as effective nuclear charge increases.
Atomic size increases down the group as the number of shells increase.
Atomic size first increases and then decreases as the number of shells and effective nuclear charge both vary.
Atomic size increases down the group as the nucleus does not attract the electrons.

Answer 1

Answer:

a is correct

Explanation:

Atomic size “Generally” decreases down the group

(may be equal in some cases)