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  2. Germanium - Wikipedia

    en.wikipedia.org/wiki/Germanium

    Germanium is a chemical element; it has symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid (more rarely considered a metal) in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms ...

  3. Germanium compounds - Wikipedia

    en.wikipedia.org/wiki/Germanium_compounds

    Germanium compounds are chemical compounds formed by the element germanium (Ge). Germanium is insoluble in dilute acids and alkalis but dissolves slowly in hot concentrated sulfuric and nitric acids and reacts violently with molten alkalis to produce germanates ([GeO. 3]2−. ). Germanium occurs mostly in the oxidation state +4 although many +2 ...

  4. Reactivity series - Wikipedia

    en.wikipedia.org/wiki/Reactivity_series

    Reactivity series. In chemistry, a reactivity series (or reactivity series of elements) is an empirical, calculated, and structurally analytical progression [1] of a series of metals, arranged by their "reactivity" from highest to lowest. [2][3][4] It is used to summarize information about the reactions of metals with acids and water, single ...

  5. Carbon group - Wikipedia

    en.wikipedia.org/wiki/Carbon_group

    The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl). It lies within the p-block. In modern IUPAC notation, it is called group 14. In the field of semiconductor physics, it is still universally called group IV.

  6. Semiconductor device - Wikipedia

    en.wikipedia.org/wiki/Semiconductor_device

    Semiconductor device. A semiconductor device is an electronic component that relies on the electronic properties of a semiconductor material (primarily silicon, germanium, and gallium arsenide, as well as organic semiconductors) for its function. Its conductivity lies between conductors and insulators. Semiconductor devices have replaced vacuum ...

  7. Germanate - Wikipedia

    en.wikipedia.org/wiki/Germanate

    Germanate. The orthogermanate anion. In chemistry, germanate is a compound containing an oxyanion of germanium. In the naming of inorganic compounds it is a suffix that indicates a polyatomic anion with a central germanium atom, [1] for example potassium hexafluorogermanate, K 2 GeF 6. [2]

  8. Sodium germanate - Wikipedia

    en.wikipedia.org/wiki/Sodium_germanate

    Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Sodium germanate is an inorganic compound with the chemical formula Na 2 GeO 3. It exists as a colorless solid. Sodium germanate is primarily used for the synthesis of other germanium compounds.

  9. Bismuth germanate - Wikipedia

    en.wikipedia.org/wiki/Bismuth_germanate

    Bismuth germanium oxide or bismuth germanate is an inorganic chemical compound of bismuth, germanium and oxygen. Most commonly the term refers to the compound with chemical formula Bi 4 Ge 3 O 12 (BGO), with the cubic evlitine crystal structure, used as a scintillator. (The term may also refer to a different compound with formula Bi 12 GeO 20 ...

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