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Germanium is created by stellar nucleosynthesis, mostly by the s-process in asymptotic giant branch stars. The s-process is a slow neutron capture of lighter elements inside pulsating red giant stars. [57] Germanium has been detected in some of the most distant stars [58] and in the atmosphere of Jupiter. [59]
Structure of the trigonal prismatic [GeAr] 6 where Ar = 2,6-(iPr) 2 C 6 H 3. [6] Color code: blue-gray = Ge, gray = C. Akin to hydrocarbons and polysilanes, many organogermanium compounds are known with Ge-Ge bonds. An early example is hexaphenyldigermane, (C 6 H 5) 3 Ge−Ge(C 6 H 5) 3. It is prepared by Wurtz coupling of the bromide: [7]
To give provisional names to his predicted elements, Dmitri Mendeleev used the prefixes eka- / ˈ iː k ə-/, [note 1] dvi- or dwi-, and tri-, from the Sanskrit names of digits 1, 2, and 3, [3] depending upon whether the predicted element was one, two, or three places down from the known element of the same group in his table.
It melts at 938 °C. Germanium is a semiconductor with an electrical conductivity of around 2 × 10 −2 S•cm −1 [306] and a band gap of 0.67 eV. [308] Liquid germanium is a metallic conductor, with an electrical conductivity similar to that of liquid mercury. [309] Most of the chemistry of germanium is characteristic of a nonmetal. [310]
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Germanite is a rare copper iron germanium sulfide mineral, Cu 26 Fe 4 Ge 4 S 32.It was first discovered in 1922, and named for its germanium content. [3] It is only a minor source of this important semiconductor element, which is mainly derived from the processing of the zinc sulfide mineral sphalerite. [6]
This is an accepted version of this page This is the latest accepted revision, reviewed on 17 November 2024. Development of the table of chemical elements The American chemist Glenn T. Seaborg —after whom the element seaborgium is named—standing in front of a periodic table, May 19, 1950 Part of a series on the Periodic table Periodic table forms 18-column 32-column Alternative and ...
Germanium dioxide, also called germanium(IV) oxide, germania, and salt of germanium, [1] is an inorganic compound with the chemical formula Ge O 2. It is the main commercial source of germanium. It is the main commercial source of germanium.
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