Where are the most reactive metals on the periodic table?

on the periodic table, alkali metals are the most reactive ones and are found in the first group of elements on the left side of the table. Alkali metals such as  lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr) are reactive because they have extra electron which they are trying really hard to get rid of. Once they get rid of this electron, these elements have a full octet.