Question

what happens to the atomic size while moving down the group and give reason regarding the same​

Answer 1

On moving down the group, from top to bottom, the atomic size increases. This is because with increase in the atomic number, extra shells of electrons are added

Explanation:

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Answer 2

Answer:

On moving down the group, from top to bottom, the atomic size increases. This is because with increase in the atomic number, extra shells of electrons are added.