Group 17 reactivity as atomic number increases?

Question

As the elements in Group 17 are considered in order of increasing atomic number, the chemical reactivity of each successive element decreases, increases or remains the same?

Answer 1

I suppose you mean the halogens: F Cl Br I: Group VIIA. The reactivity decreases from fluorine to iodine. Renumbering the periodic table is a sign of people with too little to do.

Answer 2

Reactivity decreases as you go down Group 17 (halogens). This is because as you go down the group, atomic radius increases (more shells) and because atomic radius increases, electrons are less easily attracted since the nucleus is farther away. This is in contrast to going down Group 1 (alkali metals) and Group 2 (alkaline earth metals), where reactivity increases. This is because since the atomic radius increases, electrons are more easily lost. Ultimately, metals are more reactive if they can more easily lose electrons, and nonmetals are more reactive if they can more easily gain electrons.

Answer 3

decreases
Fluorine is the most reactive, and the reactivity decreases as you move down the group

Answer 4

It decreases form flourine to iodine