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| − | {{Element | name=Germanium | symbol=Ge | anumber=32 | amass= 72.6 | noe= 32 | class= Metalloid | cstructure= Cubic | color= Gray | date= 1886 | discname= Clemens Winkler | origname= From the Latin word ''Germania'', meaning Germany | uses= Semiconductors | obtained= | + | {{Element |
| − | Refining of copper, zinc, lead}} | + | | 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> | | '''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== | | ==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). |
| | {{Periodic table}} | | {{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== | | ==Uses== |