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
Fluorine
No uranium is not chemically active
Hydrogen...
Fluorine is sometimes called the hungry wolf of the periodic table because it is the most reactive element.
The most chemically active element is the halogen known as fluorine. Be
Fluorine
Fluorine is the more reactive.
Covalent Bond. Chemically Active. The only elements that are inert are group 18, or 8A.
Alkali metals are the most reactive metals.
Active