alkaline-earth metals



  • A group within the periodic table of elements, consisting of the following metals: beryllium, magnesium, calcium, strontium, barium, and radium. Some classifications only include the heavier elements in this group, so beryllium and magnesium are then not considered to be alkaline-earth metals. They are all very reactive, readily give up electrons, are malleable, extrudable, and conduct electricity well.