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germanium    
n. 锗

锗

germanium
锗

germanium
n 1: a brittle grey crystalline element that is a semiconducting
metalloid (resembling silicon) used in transistors; occurs
in germanite and argyrodite [synonym: {germanium}, {Ge},
{atomic number 32}]

Germanium \Ger*ma"ni*um\, n. [NL., fr. L. Germania Germany.]
(Chem.)
A rare element, discovered in 1885 in a silver ore
(argyrodite) at Freiberg. It is a brittle, silver-white
metal, chemically intermediate between the metals and
nonmetals, resembles tin, and is in general identical with
the predicted {ekasilicon}. Symbol Ge. Atomic number 32.
Atomic weight 72.59. It has excellent semiconductor
properties, and is used in transistors and diodes.
[1913 Webster PJC]


Ekasilicon \Ek`a*sil"i*con\, n. [Skr. [=e]ka one E. silicon.]
(Chem.)
The name of a hypothetical element predicted by Mendeleev and
afterwards discovered and named {germanium}; -- so called
because it was a missing analogue of the silicon group. See
{Germanium}, and cf. {Ekabor}. Also see {periodic table}.
[1913 Webster PJC]


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  • Germanium - Wikipedia
    Germanium is mined primarily from sphalerite (the primary ore of zinc), though germanium is also recovered commercially from silver, lead, and copper ores Elemental germanium is used as a semiconductor in transistors and various other electronic devices
  • Germanium | Properties, Uses, Facts | Britannica
    Germanium, a chemical element between silicon and tin in Group 14 (IVa) of the periodic table, a silvery-gray metalloid, intermediate in properties between the metals and the nonmetals
  • China suspends ban on gallium, germanium, antimony exports to US
    China has suspended its ban on exporting gallium, germanium and antimony to the US, although export controls for these metals remain in effect, requiring shippers to obtain licences from Beijing
  • Germanium Facts, Symbol, Discovery, Properties, Uses
    While it can also be obtained from zinc ores, flue dust from zinc smelting is a commercial source of germanium [1] Moreover, it can be recovered from coal combustion by-products [1] The top 3 germanium producing countries include China, Russia, and Germany [1]
  • Germanium - Element information, properties and uses | Periodic Table
    Germanium is a semiconductor The pure element was commonly doped with arsenic, gallium or other elements and used as a transistor in thousands of electronic applications Today, however, other semiconductors have replaced it Germanium oxide has a high index of refraction and dispersion
  • Germanium Statistics and Information | U. S. Geological Survey
    Germanium is mainly a byproduct of zinc ore processing It is a hard, grayish-white element; it has a metallic luster and the same crystal structure as diamond; and it is brittle, like glass
  • Germanium, Chemical Element - reaction, water, uses, elements, metal . . .
    The existence of germanium was predicted by Russian chemist Dmitri Mendeleev (1834-1907), who developed the periodic table Mendeleev predicted a new element would be found to fill an empty spot on the table
  • Start – Germanium Info Page - Germanium Info Page
    Germanium belongs to the semimetals in the periodic table Germanium is one of the rarest metals on earth The shiny silver element melts at just under 940 °C and boils at 2,820 °C It is considered a semiconductor, comparable to silicon
  • Periodic Table of Elements: Los Alamos National Laboratory
    The most common use of germanium is as a semiconductor Germanium is also finding many other applications including use as an alloying agent, as a phosphor in fluorescent lamps, and as a catalyst
  • Germanium | History, Uses, Facts, Physical Chemical Characteristics
    Germanium was discovered in 1886 Germanium belongs to the carbon family and used in electronic devices as semiconductors Dmitri Mendeleev predicted the existence of germanium in 1869 He named it eka-silicon and proposed some of the physical characteristics of the then unknown metal





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