Question

observe the morden periodic table and explain the gradation in reactivity of halogen family

Answer 1

The halogens are all elements that are found in group 17 of the periodic table. The halogens include fluorine, chlorine, bromine, iodine, and astatine. All of these elements are considered to be reactive nonmetals. ... Because these atoms are so close to having a full set of eight valence electrons, they're very reactive