Element	Electron Configuration/Emission Spectrum	Common Compound(s)/Application(s)
4 Beryllium (Be)		~ Copper Alloy/Tools for Explosive environments ~/Missile and Rocket Parts, Windows of X-ray Tubes
12 Magnesium (Mg)		~ Aluminum Alloy/Light Structural Material Milk of ~ (Mg(OH)2)/Antacid ~/Essential Mineral for Human Nutrition
20 Calcium (Ca)		~ Sulfate (CaSO4)/Chalk ~ Sulfate Dihydrate (CaSO4.2H2O)/Plaster ~ Carbonate (CaCO3)/Marine Shell, Marble ~ Hydroxide (Ca(OH)2)/Cement Ingradient ~ Oxide (CaO)/Production of iron from its ores ~ Hydroxyapatite (Ca10(PO4)6(OH)2)/Bones ~/Biochemistry of body cells
38 Strontium (Sr)		~ Aluminate (SrAl2O4)/Luminous Paints (via the phosphorescence process) ~ Acetate (Sr(C2H3O2)2)/Toothpaste for relieving pain of sensitive teeth
56 Barium (Ba)		~ Sulfate (BaSO4)/Intestinal Tract X-ray Photo ~/Getter for Vacuum Tube
88 Radium (Ra)		~ + Zinc Sulfide (ZnS)/Luminous Paints ~/Standard Unit of Radiation = Curie = Radiation from 1 gm of Ra, Generation of Radioactive Gas (Radon) for Cancer Therapy, Portable Source of Neutron Radiation

Group 2 Elements