Changes

==History==

==History==

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).

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}}

{{Periodic table}}

    

    

==Properties==

==Properties==

Melting Point: 1720.85°F (938.25°C or 1211.40 K)

Melting Point: 1720.85 °F (938.25 °C or 1211.40 K)

   

   

Boiling Point: 5131°F (2833°C or 3106 K)

Boiling Point: 5131 °F (2833 °C or 3106 K)

   

   

Density: 5.323 grams per cubic centimeter

Density: 5.323 grams per cubic centimeter

    

    

==Uses==

==Uses==

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>

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>

   

   

==References==

==References==