Insulators, on the other hand, are made of a wide variety of materials depending on factors such as the desired resistance. Discoverer: Marinsky, Jacob A. and Coryell, Charles D. and Glendenin, Lawerence. Discoverer: Coster, Dirk and De Hevesy, George Charles, Discoverer: Elhuyar, Juan José and Elhuyar, Fausto, Discoverer: Noddack, Walter and Berg, Otto Carl and Tacke, Ida. Cadmium is resistant to fire and is inflammable but is flammable in powdered form. It is resistant to corrosion. A crystal lattice is a repeating pattern of mathematical points that extends throughout space. 1) You may use almost everything for non-commercial and educational use. Lanthanoids comprise the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium. Discoverer: Davy, Sir H. and Thénard, L.-J. E. Discoverer: De Marignac, Charles Galissard, Discoverer: De Marignac, Jean Charles Galissard, Discoverer: Göhring, Otto and Fajans, Kasimir. In the environment it is distributed nearly everywhere we find zinc and therefore when we mine zinc, we consequently mine cadmium. Cadmium is used for making bearings and in alloys used in making bearing due to its resistance to high fatigue and low coefficient of friction. Cadmium sits right below zinc on the periodic table and therefore shares many of its same chemical properties. The three most common basic crystal patterns are: This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Cadmium is whitish blue transition metal. Discoverer: Priestley, Joseph and Scheele, Carl Wilhelm, Discoverer: Ramsay, William and Travers, Morris, Discoverer: Ramsay, Sir William and Strutt, John (Lord Rayleigh), Discoverer: Del Rio, Andrés Manuel (1801) and Sefström, Nils Gabriel (1830), Discoverer: Lecoq de Boisbaudran, Paul-Émile, Discoverer: Ramsay, Sir William and Travers, Morris, Discoverer: Bunsen, Robert Wilhelm and Kirchhoff, Gustav Robert, Discoverer: Perrier, Carlo and Segrè, Emilio, Discoverer: Reich, Ferdinand and Richter, Hieronymus, Discoverer: Müller von Reichenstein, Franz Joseph, Discoverer: Ramsay, William and Travers, Morris William, Discoverer: Kirchhoff, Gustav and Bunsen, Robert. It is similar in many … (1969), Discoverer: Scientists at Dubna, Russia (1967)/Lawrence Berkeley Laboratory (1970), Discoverer: Armbruster, Paula and Muenzenberg, Dr. Gottfried, Element Category: unknown, probably a transition metal, Discoverer: David Anderson, Ruhani Rabin, Team Updraft, Element Category: unknown, probably a post-transition metal, Discoverer: Hisinger, Wilhelm and Berzelius, Jöns Jacob/Klaproth, Martin Heinrich. Greenockite (CdS) is the only mineral of any consequence bearing cadmium. Interactive periodic table showing names, electrons, and oxidation states. In solid-state physics, this energy gap or band gap is an energy range between valence band and conduction band where electron states are forbidden. A low resistivity indicates a material that readily allows the flow of electric current. We use cookies to ensure that we give you the best experience on our website. The symbol of resistivity is usually the Greek letter ρ (rho). Cadmium is a 48. chemical element in the periodic table of elements. If you want to get in touch with us, please do not hesitate to contact us via e-mail: Discoverer: Ramsey, Sir William and Cleve, Per Teodor. Cadmium is physically similar to zinc but is denser and softer. • Cadmium at The Periodic Table of Videos (University of Nottingham) Substances in which electricity can flow are called conductors. admium has a melting point of 320.9°C, boiling point of 765°C, spcific gravity of 8.65 (20°C), and a valence of 2.Cadmium is a blue-white metal soft enough to be easily cut with a knife. Our Website follows all legal requirements to protect your privacy. The chemical symbol for Cadmium … It is one of the metallic components in the earth's crust and oceans. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Cadmium is used as an electroplating agent to protect aircrafts etc. and Gay-Lussac, L.-J. Discovered by Stromeyer in 1817 from an impurity in zinc carbonate. Various salts of cadmium are used in making pigments, such as cadmium selenide is termed as cadmium red as it is used to make red pigment and cadmium sulfide is used to make yellow pigment.