Question

drag and drop the elements to order them from largest atomic radius to smallest atomic radius. iodine fluorine chlorine bromine

Explanation:

Step1: Recall atomic - radius trend

Atomic radius increases down a group in the periodic table. Fluorine (F), chlorine (Cl), bromine (Br), and iodine (I) are all in Group 17 (halogens).

Step2: Order the elements

As we move down the group, the number of electron - shells increases, leading to a larger atomic radius. So, iodine has the largest atomic radius among them, followed by bromine, chlorine, and then fluorine.

Answer:

Iodine, Bromine, Chlorine, Fluorine