All the elements in this group exist in nature as diatomic compounds.
All the elements in this group exist in nature as diatomic compounds. They share a column on the periodic table which has the most reactive of all elements at its top.  Consisting of the chemical elements with atomic numbers 85, 53, 35,17, and 9, for ten points, identify this group of elements comprised of Astatine, Iodine, Bromine, Chlorine, and Flourine.
All the elements in this group exist in nature as diatomic compounds.
Halogens