Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (group 2, or alkaline earth metals) of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure.
The first person to recognise that magnesium was an element was Joseph Black at Edinburgh in 1755. He distinguished magnesia (magnesium oxide, MgO) from lime (calcium oxide, CaO) although both were produced by heating similar kinds of carbonate rocks, magnesite and limestone respectively.
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.
What's in a name? For Magnesia, a district in the region of Thessaly, Greece. Say what? Magnesium is pronounced as mag-NEE-zhi-em.. History and Uses: Although it is the eighth most abundant element in the universe and the seventh most abundant element in the earth's crust, magnesium is never found free in nature.Magnesium was first isolated by Sir Humphry Davy, an English chemist, through ...
Magnesium hydroxide, Mg(OH) 2, is a white powder produced in large quantities from seawater by the addition of milk of lime (calcium hydroxide).It is the primary raw material in the production of magnesium metal and has been used as a fire-retardant additive. In water it forms a suspension known as milk of magnesia, which has long been used as an antacid and a laxative.
Magnesium atoms have 12 electrons and the shell structure is 2.8.2. The ground state electronic configuration of neutral magnesium is [Ne].3s 2 and the term symbol of magnesium is 1 S 0.. Magnesium: description Your user agent does not support the HTML5 Audio element.
Facts Date of Discovery: 1808 Discoverer: Sir Humphrey Davy Name Origin: Magnesia (City) Uses: airplanes, missiles Obtained From: sea water Related Links Note: The external links below are not a part of this site and their content is not the responsibility of this site
Magnesium makes up 2 percent of the Earth's crust, but you won't see this silvery, light metal in nature. This versatile element occurs naturally only in combination with other elements, such as ...
Magnesium. Chemical element, metallic, symbol Mg, situated in group IIa in the periodic table, atomic number: 12, atomic weight: 24,312. Magnesium is silvery white and very light.
The chemical element magnesium is classed as an alkali earth metal. It was discovered in 1808 by Humphrey Davy.