the atom with the largest atomic radius in group 18 is -
the atom with the largest atomic radius in group 18 is -
Answer
Explanation:
Step1: Recall atomic - radius trend
Atomic radius increases down a group in the periodic table due to the addition of electron - shells.
Step2: Identify positions of elements
Ar (argon), Rn (radon), Kr (krypton), and He (helium) are all in Group 18. Rn is the lowest in the group among them with the most electron - shells.
Answer:
Rn