Which halogens are the most and least reactive?

Question

and WHY?

Answer 1

fluorine is the most reactive, for its tiny nucleus and great electro negativity, it release more energy on reaction and the product is more stable.
statine(or whatever comes below iodine in periodic table, looked periodic table 14years ago in school!!) is the least reactive as its very huge, and is very less electronegative, liberates less energy on reaction.

Answer 2

Actually, Halogens get more reactive the higher you go in the family.

Fluorine is the most reactive. It will spontaneously react with oxygen. Astatine is the least reactive.

This is the opposite of the group one metals (Sodium/Lithium/Etc).

The reason has to do with how close the electrons are to the nucleus (closer, the tighter bound and more aggressively gotten[aka higher electronegativity]/ the further, the less tight and easily given up - lower electronegativity). Given halogens bind by taking electrons (or at least sharing) and the metals by giving them up, this is why they are the way they are, reactivity wise.

Answer 3

Halogens increase in reactivity as you go down the family.
(Astatine is most reactive. You figger out the rest)

Answer 4

Fluorine is more reactive, because is more eletronegative, and attacks fastly another atoms "stoling" their electrons......
Iodine is less reactive, because is less eletronegative

Answer 5

WELL LOOK ON YOUR PERIODIC TABLE OF ELEMENTS. THE HALOGENS GET MORE REACTANT AS YOU MOVE DOWN THE PERIODIC TABLE. AND AS FOR THE WHY PART I DONT KNOW I ONLY KNOW THE PART I TOLD YOU ABOUT BECAUSE IM LEARNING THE SAME THING.

Answer 6

the patent type