What is the most reactive group on the periodic table?

In actuality, both are equally reactive, even though a teacher might claim that one is more reactive than the others.

This is partly because of their outer valence shells; both groups react more readily because they only need to gain or lose an electron, which is comparatively simple to do.

On the periodic table, the alkali metals are the most reactive group.

The most reactive group on the periodic table is Group 1, also known as the alkali metals group. This group includes elements such as lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). Alkali metals are highly reactive because they have only one electron in their outermost shell, making them eager to lose that electron to achieve a stable electron configuration. As a result, they readily react with other elements, particularly halogens from Group 17, to form ionic compounds.