which element has the largest atomic radius?\nas\nn\np\nsb

Answer:

D. Sb

Explanation:

Step1: Recall atomic - radius trend

Atomic radius increases down a group in the periodic table.

Step2: Identify group of elements

As, N, P, and Sb are all in Group 15 of the periodic table.

Step3: Determine the element with largest radius

Since Sb is the element lowest in the group among them, it has the largest atomic radius.