Matching Pairs TCA: Chemistry: Alk and Alk EarthOnline version Alkali Metals and Alkaline Earth Metals by Elvira Trevino 1 Be 2 Li 3 Ba 4 Sr 5 Na 6 Cs 7 Ra 8 K 9 Fr 10 Ca 11 Mg 12 Rb Radium Francium Strontium Beryllium Calcium Sodium Potassium Magnesium Lithium Cesium Barium Rubidium