Question

How do atomic radius and ionic radius vary in period and group of periodic table explain?

Answer 1

the ionic radius of a cation is always bigger than the atomic radius.while the ionic radius of an atom is smaller than atomic radius.

Answer 2

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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.