Of these, 76 Ge is very slightly radioactive, decaying by double beta decay with a half-life of 1.78 × 10 21 years (130 billion times the age of the universe). Common Uses The number of atoms/cm 2 in Ge or Si is of the the order of 10 22. Just the facts. = 70. atomic no. Germanium is a chemical element with Ge as its symbol. Thus, at room temperature in Ge (Si), one atom out of about 10 9 (10 12 ) contributes one electron-hole pair through breaking of covalent bond. In pure form, the element is a grayish-white … Isotope abundances of germanium. This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes. Atomic Number: 32 Symbol: Ge Atomic Weight: 72.61; Discovery: Clemens Winkler 1886 (Germany) Electron Configuration: [Ar] 4s 2 3d 10 4p 2; Word Origin: Latin Germania: Germany Properties: Germanium has a melting point of 937.4 C, boiling point of 2830 C, specific gravity of 5.323 (25 C), with valences of 2 and 4. There are five naturally occurring isotopes of germanium: germanium-70, germanium-72, germanium-73, germanium-74, and germanium-76. However, today it is primarily obtained from the smelting of zinc ores and as a byproduct of burning certain types of coal. Element Germanium (Ge), Group 14, Atomic Number 32, p-block, Mass 72.630. In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. It's an element that was predicted by Mendeleev in 1871. : Number of neutrons + no. Classified as a metalloid, Germanium is a solid at room temperature. Germanium Basic Facts . Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Other compounds include: Germanium dichloride Ge Cl 2, Germanium dioxide GeO 2, Germanium tetrachloride GeCl 4 this is very irritating to eyes and membranes. Germaine is a hazardous substance UN2192 which is classified as a poisonous gas (2.3). It belongs to group 14 of the periodic table and its atomic number is 32. The atomic number of an element never changes, meaning that the number of protons in the nucleus of every atom in an element is always the same. All atoms have a mass number which is derived as follows. Germanium fluoride (GeF 2) Germanium dioxide (GeO 2) Germanium hydride (Ge 2 H 6) Germanium tetrachloride (GeCl 4) Interesting facts: In its natural state it is brittle and crystalline. = 32. therefore, the no. ››More information on molar mass and molecular weight. Atomic number (number of protons in the nucleus): 32; Atomic symbol (on the periodic table of elements): Ge SO; in your question we have: mass no. Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. It is less abundant than either tin or lead. Predicted by Mendeleev in 1870, germanium was actually found in 1886 by Winkler. It forms a large number of organometallic compounds. Stable 74 Ge is the most common isotope, having a natural abundance of approximately 36%. Isotopes are two or more forms of an element. Germanium is a chemical element with symbol Ge and atomic number 32. Isotopes differ from each other according to their mass number. Germanium is a lustrous hard metalloid element, belongs to group 14 of the periodic table. Germanium Page One. 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