Which of the following atoms has the smallest volume?
A)Ba
B)Cs
C)Sr
D)Rb
E)I

Question

Quizplus · Accepted Answer

As we move down a group in the periodic table, the atomic radius increases due to the addition of more electron shells. Therefore, the largest element in the group will have the largest atomic radius and volume. Among the given options, iodine (I) is located at the bottom of group 17, and therefore it should have the largest atomic radius and volume.

Which of the Following Atoms Has the Smallest Volume