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.<br /><br />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.