Tammy+Catanese-MASC

image 1 __Atomic Number__: 12 __Symbol__: Mg __Atomic Weight__: 24.305 __Discovery__: Recognized as an element by Black 1775; Isolated by Sir Humphrey Davy 1808 (England) __Electron Configuration__: [Ne] 3s2 __Word Origin__: Magnesia, a district in Thessaly, Greece __Uses__: Magnesium is used in [|pyrotechnic] and incendiary devices. It is alloyed with other metals to make them lighter and more easily welded, with applications in the aerospace industry. Magnesium is added to many propellents. It is used as a reducing agent in the preparation of uranium and other metals that are purified from their salts. Magnesite is used in refactories. Magnesium hydroxide (milk of magnesia), sulfate (Epsom salts), chloride, and citrate are used in medicine. Organic magnesium compounds have many uses. Magnesium is essential for plant and animal nutrition. Chlorophyll is a magnesium-centered porphyrin. __Sources__: Magnesium is the 8th most [|abundant element] in the earth's crust. While it is not found free it nature, it is available in minerals including magnesite and dolomite. The metal may be obtained by electrolysis of fused magnesium chloride derived from brines and seawater. __Atomic Weight__: 24.305 __Element Classification__: [|Alkaline Earth Metal] __Density (g/cc)__: 1.738 __Appearance__: lightweight, malleable, silvery-white metal __Atomic Radius (pm)__: 160 __Atomic Volume (cc/mol)__: 14.0 __Covalent Radius (pm)__: 136 __Ionic Radius__: 66 (+2e) __Specific Heat (@20°C J/g mol)__: 1.025 __Fusion Heat (kJ/mol)__: 9.20 __Evaporation Heat (kJ/mol)__: 131.8 __Debye Temperature (K)__: 318.00 __Pauling Negativity Number__: 1.31 __First Ionizing Energy (kJ/mol)__: 737.3 __Oxidation States__: 2 __Lattice Structure__: [|Hexagonal] __Lattice Constant (Å)__: 3.210 __Lattice C/A Ratio__: 1.624 __website__: [] __image 1 reference: []__
 * Tammy Catanese MASC page **
 * __Magnisium__ **