Germanium Page One. Stable 74 Ge is the most common isotope, having a natural abundance of approximately 36%. = 70. atomic no. Isotope abundances of germanium. Germanium is a chemical element with Ge as its symbol. Germanium Basic Facts . Properties, sources and uses of the element germanium. In pure form, the element is a grayish-white … Germanium was first located in a rare mineral called argyrodite. Element Germanium (Ge), Group 14, Atomic Number 32, p-block, Mass 72.630. Other compounds include: Germanium dichloride Ge Cl 2, Germanium dioxide GeO 2, Germanium tetrachloride GeCl 4 this is very irritating to eyes and membranes. Isotopes differ from each other according to their mass number. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes. However, today it is primarily obtained from the smelting of zinc ores and as a byproduct of burning certain types of coal. ››More information on molar mass and molecular weight. All atoms have a mass number which is derived as follows. Atomic number (number of protons in the nucleus): 32; Atomic symbol (on the periodic table of elements): Ge Overview of Germanium It is less abundant than either tin or lead. It belongs to group 14 of the periodic table and its atomic number is 32. It is also a flammable gas (2.1). Isotopes are two or more forms of an element. In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. The number of atoms/cm 2 in Ge or Si is of the the order of 10 22. There are five naturally occurring isotopes of germanium: germanium-70, germanium-72, germanium-73, germanium-74, and germanium-76. 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). 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. It forms a large number of organometallic compounds. Classified as a metalloid, Germanium is a solid at room temperature. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … 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. = 32. therefore, the no. 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. Germanium Menu. Common Uses : Number of neutrons + no. Germanium is a chemical element with symbol Ge and atomic number 32. 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. It is a gray-white metalloid. Germaine is a hazardous substance UN2192 which is classified as a poisonous gas (2.3). At room temperature (300 K), for Ge (Si) per cm 3 . Germanium is a lustrous hard metalloid element, belongs to group 14 of the periodic table. Just the facts. Germanium (32 Ge) has five naturally occurring isotopes, 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge. of protons = mass number. Predicted by Mendeleev in 1870, germanium was actually found in 1886 by Winkler. Its ores are rare. 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