Density
5.323 g/cm³ (at 25 °C)
Discovery
Discovered by Clemens Winkler in 1886.
Common Uses
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Major semiconductor material in electronics
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Used in some solar cells
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Applications in infrared optics
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Used in certain transistors and diodes
Interesting Facts
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Germanium is a metalloid, having properties of both metals and nonmetals.
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Its existence was predicted by Dmitri Mendeleev, who called it "eka-silicon".
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Named after Germany, the homeland of its discoverer.
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Pure germanium is a brittle, silvery-white solid.
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