most well known alkaline earth metals
Alkali metal In the modern IUPAC nomenclature, the alkaline earth metals comprise the group 2 elements. The alkaline earth metals are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). This group lies in the s-block of the periodic table as all alkaline earth metals have their outermost electron in an s-orbital. All the discovered alkaline earth metals occur in nature.