Among the elements of the third period (Na to Ar), pick out the element with the largest atomic radius.

Among the elements of the third period (Na to Ar), pick out the elemen

1.	Among the elements of the third period (Na to Ar), pick out the element with the largest atomic radius.
Answer» Solution :Across the period as NUCLEAR CHARGE INCREASES the size of an element decreases. Alkali metals are undoubtedly the LARGEST in their respective PERIODS. In the third period as a result Sodium (Na) shall be the largest in size.