Germanium+by+tavia+mckenzie

__GERMANIUM BY:Tavia Mckenzie __  __Basic information__ NAME=GERMANIUM SYMBOL=Ge ATOMIC NUMBER=32 ATOMIC MASS=72.64 NUMBER OF ELECTRON=32 NUMBER OF NEUTRONS =41 NUMBER OF PROTONS=32 ELECTRON CONFIGURATION=[Ar]4s23d104p2

__ISOTOPES AND HALF LIVES__ Germanium has five naturally occuring isotopes,70Ge, 72Ge, 73Ge, 74Ge, and 76Ge. Of these 76Ge is slighty radioactive decaying by beta decay and 74Ge is the most common isotope for Germanium. __HISTORY__ The element was predicted in 1871 by Mendeleyev. The chemical properties are similar to silicon. At first he called it eka-silicon then the German chemist Clemens Winkler discovered this element in 1886 and named it Germanium after his home country Germany. __CHEMICAL AND PHYSICAL PROPERTIES__ Germanium is a hard, gray-white, brittle metalloid. It has a diamond like structure and it is similar in chemical and physical properties to the element silicon. Germanium is stable in air and water, and is unaffected by alkalis and acids, except nitric acid.Germanium is found as a mineral combined with oxygen. It is a semi-conductor of electricty which means it transmits electricity but it transmitt very poorly. Its density is 5.323g/cm3 and the melting point of Germanium is 938.3c.  __uses__ Germanium is an important semiconductor, mainly used in transistors and integrated circuits. They are often made from germanium to which small amounts of metals. Germanium forms many compounds. Germanium oxide is added to glass to increase the index of refraction; such glass is used in wide-angle lenses and in infrared devices. Numerous alloys containing germanium have been prepared. High purity germanium single crystal detectors can identify radiation sources. germanium is also used for optimum nutirtion of the humna body. this element raises the level of oxygen.
 * = ** Isotope ** ||= ** Half Life ** ||
 * = Ge-68 ||= 270.8 days ||
 * = Ge-69 ||= 1.6 days ||
 * = Ge-70 ||= Stable ||
 * = Ge-71 ||= 11.4 days ||
 * = Ge-72 ||= Stable ||
 * = Ge-73 ||= Stable ||
 * = Ge-74 ||= Stable ||
 * = Ge-76 ||= Stable ||
 * = Ge-77 ||= 11.3 hours ||

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