Cobalt & Lithium

cobalt was discovered in 1735 by a Swedish scientist Georg Brandt. The business of its telephone means evil spirit. It is a show up with an nuclear number of 27 and an atomic weight of 58.933200 amus. Its attribute is Co and it resides in Group 9 Period 4. It is a metal and has a lustrous silver shine to it which resembles agitate or nickel. Unlike most metals which are m everyeable, Cobalt is actu bothy sort of brittle. It is as well one of the transit metals with a Hexagonal watch crystal structure. Cobalt occurs naturally throughout the world and can be mined. It is employ in many commercial, industrial and military uses. It is most normally expend to reconcile gas turbine aircraft engines but is in any case used to make magnets, corrosion and wear resistant alloys, high further steels, cemented carbides and adamant tools. Lithium was discovered in 1817 by a Swedish Chemist who was analyzing a strange ore pretendd Petalite. This Swedish Scientist, Johann Augus t Arfvedson, rule traces of an unknown substance in the Petalite. This was the first discovery of Lithium. The name Lithium comes from the Greek word for stone lithos. The symbol Li was taken directly from its new name. In the 1850s W.T. Brande and Sir Humphrey Davy were the first to seize the element.

        Lithium does not exist in its standard high in nature because of its radical occurances that happen when mixed with urinate or air. The metal Lithium is actually so easy it can be cut with a sharp knife. It is the lightest and softest of all known metals. The only way to store lithium is in liquid paraffin, oil or kerosene which a! ll judge no air.         Lithiums atomic number is 3. It contains 3 protons and 4 neutrons. It also has a total of... If you want to get a liberal essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper