Lanthanum. think that's spelled right. activity tends to go from top left to bottem right in metals, and Lanthanum is the farthest left.
Fluorine
Halogens
Hydrogen...
Fluorine is sometimes called the hungry wolf of the periodic table because it is the most reactive element.
Fluorine is the most chemically active nonmetal on the planet. It is highly reactive and can form compounds with almost all elements due to its strong electronegativity.
The most chemically active element is the halogen known as fluorine. Be
Covalent Bond. Chemically Active. The only elements that are inert are group 18, or 8A.
Alkali metals are the most reactive metals.
Fluorine is the most chemically active halogen due to its small atomic size and high electronegativity, which allows it to readily react with a wide variety of other elements.
The most electronegative of all elements is fluorine, at 3.98 on the Pauling scale.
The most electronegative of all elements is fluorine, at 3.98 on the Pauling scale.
The nobel gases for the most part. He, Ne, etc