Question

which is the most reactive halogen??

Answer 1

Fluorine is the most reactive halogen......
hope this help.....

Answer 2

Fluorine (F) is the most reactive halogen element.

At room temperature, the halogen group displays all three phases (solid, liquid, and gas). Iodine and astatine are solids. Fluorine and chlorine are gases. Bromine is a liquid. In fact, bromine is one of only two elements that are liquid at room temperature. (Mercury is also liquid are room temperature.)

The halogen elements are all extremely electronegative because of their strong desire to acquire an extra electron. In fact, fluorine is the most electronegative element on the periodic table. Can you guess what the halogens and a Britney Spears' song have in common? They're toxic.

Fluorine (F, Z = 9) was first isolated in 1886 by the French chemist Henri Moissan.15 It is the most abundant halogen found in the Earth's crust.11 At room temperature it's a pale yellow gas, and as we've already mentioned is extremely toxic. It's also one of the most widely used halogens. For example, complexes of fluorine are used in the manufacture of Teflon (which is used for everything from lining pots and pans to car parts) and freons (which are used as coolants in refrigerators).