Chlorine is the most reactive gas element. Chlorine is in the halogen family.
Hydrogen fluoride is the most reactive compound in this group (not element).
If by vital you mean most reactive, then the metal francium, Fr, is the most reactive element.
The most reactive elements are alkali metals and halogens.
Fluroine is the most reactive non-metal.
A more reactive metal pushes out a less reactive metal out of a compound element, eg. CuSo4+Mg=MgSo4+Cu
Fluorine is the most reactive element.
Hydrogen fluoride is the most reactive compound in this group (not element).
During a single-displacement reaction, one element replaces another in a compound. This reaction is most likely to occur if a more reactive element displaces a less reactive element in the compound. The displacement reaction will result in the formation of a new compound and a free element.
Fluorine(F2) is the most reactive element, known to react with even Xenon, Krypton, Gold, Platinum, etc.
If by vital you mean most reactive, then the metal francium, Fr, is the most reactive element.
The most reactive elements are alkali metals and halogens.
Chlorine is the element that will most likely react similarly to fluorine because they are both part of the halogen group, which are highly reactive nonmetals with similar chemical properties.
Fluorine
The most reactive is fluorine.
Potassium is most reactive with the element Oxygen. However, it should be noted that it is most reactive with a non-element: Water.
No, the opposite of that.
Potassium is the most reactive element with oxygen, readily reacting to form potassium oxide.