Question

How does the atomic radius change as you go?
(i) From left to right in a period
(ii) Down a group in the periodic table​

Answer 1

Answer:

The atomic radius changes as we go down a group in the periodic table.

Answer 2

You perhaps know about atomic radius but let me remind again The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons.

Now to the answer:

(i) From left to right, the atomic radius decreases.

(ii) Down a group in the periodic table, atomic radius increases.

Hope this helps you mate