Question

Hi guys. How does the atomic size vary on moving down a group?​

Answer 1

Explanation:

On moving from left to right in a period, the atomic size decreases. More and more electrons are added to same shell. ... 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.

Answer 2

Answer:

In general, the atomic radius decreases as we move from left to right in a period with an increase in nuclear charge of the element. The atomic radius increases when we go down a group because of the addition of extra shell.

Explanation:

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