Which of the following halogens has the smallest atomic radius?

Question

Quizplus · Accepted Answer

As we move down the group (top to bottom) in the periodic table, the atomic radius of the halogens increases due to the addition of new energy levels. However, as we move from left to right in the same period, the atomic radius of the halogens decreases due to the increase in the nuclear charge that attracts the electrons more strongly, causing the atomic size to decrease. Therefore, among the given halogens, fluorine (F) is the smallest because it is located at the top right of the group, and its atomic radius is the smallest.

Which of the Following Halogens Has the Smallest Atomic Radius