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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]
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 ...
Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. Of these, 76 Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78 × 10 21 years [4] (130 billion times the age of the universe). Stable 74 Ge is the most common isotope, having a natural abundance of approximately 36%.
Two oxides of germanium are known: germanium dioxide (GeO 2, germania) and germanium monoxide, (GeO). [4] The dioxide, GeO 2 can be obtained by roasting germanium disulfide (GeS 2) or by allowing elemental germanium to slowly oxidze in air, [5] and is a white powder that is only slightly soluble in water but reacts with alkalis to form germanates. [4]
Pages in category "Germanium" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. ...
Germanium comes from the Latin word Germania, the Latin name for Germany, which is the country where germanium was discovered. Stannum comes from the Latin word stannum , meaning "tin", from or related to Celtic staen .
Germanium monoxide (chemical formula GeO) is a chemical compound of germanium and oxygen. It can be prepared as a yellow sublimate at 1000 °C by reacting GeO 2 with Ge metal. The yellow sublimate turns brown on heating to 650 °C. [ 1 ]
Germanium oxide may refer to: Germanium dioxide , GeO 2 , the best known and most commonly encountered oxide of germanium containing germanium(IV) Germanium monoxide , GeO, a stable but not well characterised compound containing germanium(II)