Changes

1,551 bytes added ,  16:00, August 25, 2019
m
no edit summary
Line 1: Line 1: −
{{Element | name=Germanium | symbol=Ge | anumber=32 | amass= | noe= | class= | cstructure= | color= | date= | discname= | origname= | uses= | obtained= }}
+
{{Element  
 +
| name=Germanium  
 +
| symbol=Ge  
 +
| class=Group IVA, Carbon family
 +
| anumber=32  
 +
| amass= 72.59
 +
| stableisotopes=70, 72, 73, 74, 76
 +
| unstableisotopes=66, 67, 68, 69, 71, 75, 77, 78
 +
| meltingpoint=937.4 (1,720.85 °F)
 +
| boilingpoint=2,830 (5,131 °F)
 +
| density=5.323
 +
| hardness=6.25
 +
| abundance=0.0007
 +
| oxidation=+2, +4
 +
| date= 1886
 +
| discname= Clemens Winkler
 +
| origname= From the Latin word ''Germania'', Germany
 +
| uses= Semiconductors
 +
| obtained=Refining of copper, zinc, lead
 +
}}
 +
'''Germanium''' ''(jer-MAY-ni-em)'' is a brittle, silvery-white semi-metal (metalloid).<ref>http://www.rsc.org/periodic-table/element/32/germanium</ref>
 +
==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).
 +
{{Periodic table}}
 +
 
 +
==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>
 +
 +
==References==
 +
<references />
   −
 
+
==External links==
−
[[Category:Chemistry]]
+
*http://chemistry.about.com/od/elementfacts/a/germanium.htm
−
[[Category:Elements]]
 
Block, Siteadmin, SkipCaptcha, Upload, Automoderated users, delete, edit, Moderators, move, protect, rollback, Administrators
27,336

edits