WebThere are five isotopes of germanium 70 Ge, 72 Ge, 73 Ge, 74 Ge, and 76 Ge Need a fast expert's response? Submit order and get a quick answer at the best price for any assignment or question with DETAILED EXPLANATIONS! Learn more about our help with Assignments: Chemistry 1. Webgallium (Ga), chemical element, metal of main Group 13 (IIIa, or boron group) of the periodic table. It liquefies just above room temperature. Gallium was discovered (1875) by French chemist Paul-Émile Lecoq de Boisbaudran, who observed its principal spectral lines while examining material separated from zinc blende. Soon afterward he isolated the …
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Web58 rijen · 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 (130 billion times the age of the universe). Stable 74 … WebIn Sec. 3, we present the expression for the effective mass and, based on the effective mass, we derive an equation for the isotope effect on the phonon frequency of polyatomic crystals through perturbation theory. In Sec. 4, we re-derived the formula for the phonon lifetimes caused by isotopes, which is independent of the eigenvectors. philips norelco 6500 review
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WebRadioisotopes with medicine, nuclear medicine, an use concerning radioisotopes for diagnostics, radiation therapy, radiopharmaceuticals and select beneficial medical uses of nuclear technology. Tens of millions regarding nuclear medicine how are made each year, and demand for radioisotopes is increasing raschen Web(a) Many vehicles have a catalytic converter fitted on their exhaust systems. Describe the chemical reactions which occur in the catalytic converter to reduce the emissions of carbon monoxide and nitrogen dioxide. WebIsotopes of Germanium There are five types of natural isotopes found in Germanium, such as 70Ge, 72Ge , 73Ge, 74Ge, and 76Ge . 74Ge is the most common isotope, having a natural abundance of approximately 36%. 76Ge is the least common with a natural abundance of approximately 7%. Production of Germanium philips norelco 5850 electric shaver ratings