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Refining of copper, zinc, lead}}
 
Refining of copper, zinc, lead}}
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'''Germanium''' ''(jer-MAY-ni-em)'' is a brittle, silvery-white semi-metal (metalloid).<ref>http://www.rsc.org/periodic-table/element/32/germanium</ref>
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==History==
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Germanium was first proposed to exist by Dmitri Mendeleyev in 1871.  He had recently created a Periodic Table of Elements, and identified gaps which where unknown elements.  Germanium was officially discovered in 1886 by Clemens Winkler, a German chemist.  He found it in the mineral [[argyrodite]] (Ag8GeS6).
 
{{Template:Periodic table}}
 
{{Template:Periodic table}}
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==Properties==
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Melting Point: 1720.85°F (938.25°C or 1211.40 K)
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Boiling Point: 5131°F (2833°C or 3106 K)
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Density: 5.323 grams per cubic centimeter
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State of Matter at Room Temperature: Solid
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==Uses==
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Germanium is primarily used as a semiconductor.  With [[arsenic]], [[gallium]], [[indium]], [[antimony]] or [[phosphorus]], it is used to make transistors.  Another major use for Germanium is lenses. It is used in the manufacture of wide-angle camera lenses and objective [[lenses]] for [[microscopes]]. <ref>http://www.rsc.org/periodic-table/element/32/germanium</ref> It is also used to create alloys and as a phosphor in fluorescent lamps. <ref>http://education.jlab.org/itselemental/ele032.html</ref>  Additionally, adding 1% germanium to [[silver]] prevents tarnishing.<ref>http://www.rsc.org/periodic-table/element/32/germanium</ref>
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==References==
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<references />
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==External Resources==
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http://www.rsc.org/periodic-table/element/32/germanium
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