Question

which element has the largest atomic radius?
o as
o n
o p
o sb

Explanation:

Atomic radius increases down a group in the periodic table. Nitrogen (N), Phosphorus (P), Arsenic (As), and Antimony (Sb) are all in Group 15. Sb is the furthest down the group among these elements, so it has the largest atomic radius due to more electron - shells.

Answer:

Sb