During o chemistry class . Corter asked which element with an s'configuration on is not considered o member of the alkali metals group? square

The alkali metals group consists of elements in Group 1 of the periodic table, which have a single electron in their outermost s-orbital. The alkali metals include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). All of these elements have an s' configuration in their outermost electron shell.Therefore, the element with an s' configuration that is not considered a member of the alkali metals group is hydrogen (H). Hydrogen has a single electron in its outermost s-orbital, but it is not an alkali metal because it does not have the same chemical properties as the other elements in the group.