The Properties of the Magnesium Element Symbol of Element : Mg Atomic Number : 12 Atomic Mass: 24.305 amu Melting Point: 650.0 °C - 923.15 °K Boiling Point: 1107.0 °C - 1380.15 °K Number of Protons/Electrons: 12 Number of Neutrons: 12 Crystal Structure: Hexagonal Density @ 293 K: 1.738 g/cm3 Color : silvery-white What is Magnesium? Origin / Meaning of the name Magnesium The name originates from a Greek district in Thessaly called Magnesia. Magnesium was abundant in oxide and carbonate ores in this region, and they therefore became referred as stones from Magnesia. What is Magnesium? Periodic Table Group and Classification of the Magnesium Element Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Magnesium is classified as an "Alkaline Earth Metals" which are located in Group 2 elements of the Periodic Table. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals. An Element classified as an Alkaline Earth Metals are found in the Earth’s crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures. For additional facts and information refer to Magnesium Properties. Common properties of Alkaline Earth metals The elements classed as "Alkaline Earth metals" have the following properties in common: - Shiny Solids
- Two electrons in the outer shell
- Can conduct heat or electricity
- Can be formed into sheets
What is Magnesium? Occurrence of the Magnesium Element Magnesium is a very abundant element in nature, ranking a little below Calciumin this respect. Like calcium, it is a constituent of many rocks and also occurs in the form of soluble salts. Does not occur uncombined with other elements Obtained from sea water Eighth most abundant element in the earth's crust Found in large deposits of magnesite, dolomite, and other minerals Medical Uses of Magnesium - Health and Treatments Interesting information on the Medical Uses of Magnesium, Health and Treatments. Magnesium is used in treating coronary artery disease, the symptoms of PMS, migraines, high blood pressure and pre-eclampsia. The best known magnesium compound is magnesium sulfate (MgSO4 ) which is popularly known as Epson salts. Epson salts are used in bath water to relax sore muscles and remove rough skin. Milk of Magnesia (magnesium hydroxide) reduces stomach acid, and increases water in the intestines. Milk of Magnesia is used as a laxative to relieve occasional constipation and as an antacid to relieve indigestion, upset stomach and heartburn.
Abundances of the element in different environments %in Universe 0.06% % in Sun 0.07% % in Meteorites 12% % in Earth's Crust 2.9% % in Oceans 0.13% % in Humans 0.027% Associated Uses of Magnesium Dead-burned magnesite is used as brick and liners in furnaces and converters Photography - old type flash powder and flash bulbs Flares Pyrotechnics Incendiary bombs Airplanes Missiles Magnesium chloride, citrate, sulfate, oxide , hydroxide, stearate, taurate , sulphate and glycinate Interesting Facts about the History of the Discovery of Magnesium Element Magnesium was discovered by Joseph Black, in England, in 1755 who observed that magnesia alba (MgO) was not quicklime. The element was isolated by A. A. B. Bussy and Sir Humphry Davy in 1808 who isolated the metal electrochemically from magnesia. Sir Humphry Davy Sir Humphry Davy (1778-1829) isolated Sodium, Lithium, Potassium, barium, strontium, and calcium by means of electrolysis. Davy also demonstrated the elementary nature of Chlorine, invented the safety lamp and discovered the stupefying effects of nitrous oxide. Properties Magnesium is a rather tough silvery-white metal of small density. Air does not act rapidly upon it, but a thin film of oxide forms upon its surface, dimming its bright luster. The common acids dissolve it with the formation of the corresponding salts. It can be ignited readily and in burning liberates much heat and gives a brilliant white light. This light is very rich in the rays which affect photographic plates, and the metal in the form of fine powder is extensively used in the production of flash lights and for white lights in pyrotechnic displays. |