The alkaline earth metals are the metals found in group 2 of the modern periodic table, are very reactive metals. These metals have two-electron in their outer shell. Therefore, they are ready to lose two-electron in order to gain a noble gas configuration.
The Alkaline earth Metals are Beryllium, Magnesium, Calcium, Strontium, Barium, and radium.
The alkaline metals found in group 1 of the periodic table are very reactive metals that don't occur freely in nature. These metals have only one electron in their outer shell. As with all metals, the alkaline metals are malleable, ductile, and good conductors of heat and electricity. They are softer than most metals. Alkaline metals can explode if they are exposed to water
They are: Lithium, Sodium, Potassium, Rubidium, Cesium, Francium