Conductors are made of high-conductivity materials such as metals, in particular copper and aluminium. It is classified as a transition metal. Platinum is a rare transition metal. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. Discoverer: Davy, Sir H. and Thénard, L.-J. Fully descriptive writeups. Interactive periodic table with up-to-date element property data collected from authoritative sources. Platinum is a transition metal element. al. Platinum is unaffected by air and water, but will dissolve in hot aqua regia, in hot concentrated phosphoric and sulphuric acids, and in molten alkali. Platinum is widely used as a catalyst in exhaust system of internal combustion engine where it is part of the catalytic converter. The metal was used by pre-Columbian Indians. The symbol of resistivity is usually the Greek letter ρ (rho). What is Discovery of the Neutron - Definition, What is Structure of the Neutron - Definition. Each entry has a full citation identifying its source. It is one of the rarer elements in Earth's crust, with an average abundance of approximately 5 μg/kg. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Platinum (Pt), chemical element, the best known and most widely used of the six platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table. It is considered to be a precious metal along with silver and gold. The word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. History. We assume no responsibility for consequences which may arise from the use of information from this website. Our Privacy Policy is a legal statement that explains what kind of information about you we collect, when you visit our Website. Over twenty-five years ago McDonald and Hunt (1) … Visualize trends, 3D orbitals, isotopes, and mix compounds. The year 2007 marked the centenary of the death of Dmitri Mendeleev (1834–1907). The platinum group metals or PGMs are a set of six precious metals that are clustered together on the periodic table around the element platinum. The chemical symbol for Platinum is Pt. Comprehensive data on the chemical element Platinum is provided on this page; including scores of properties, element names in many languages, most known nuclides of Platinum. The platinum-group metals (abbreviated as the PGMs; alternatively, the platinoids, platinides, platidises, platinum group, platinum metals, platinum family or platinum-group elements (PGEs)) are six noble, precious metallic elements clustered together in the periodic table.These elements are all transition metals in the d-block (groups 8, 9, and 10, periods 5 and 6). Platinum is widely used as a catalyst for chemical reactions. Note that, electrical resistivity is not the same as electrical resistance. A horizontal row in the periodic table. The elements all possess a silvery white colour—except osmium, which is bluish white. Platinum is the third element of the tenth column in the periodic table. Electrical resistance is expressed in Ohms. To understand the difference between metals, semiconductors and electrical insulators, we have to define the following terms from solid-state physics: A possible crystal structure of Platinum is face-centered cubic structure. Platinum is a metallic element with the atomic number 78 and the symbol Pt. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. To find out more, see our. The forces of chemical bonding causes this repetition. Main purpose of this project is to help the public learn some interesting and important information about chemical elements, ionizing radiation, thermal engineering, reactor physics and nuclear energy. Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. Platinum is a precious metal; soft, silvery-white, and dense with a beautiful lustrous sheen. Atomic Number – Does it conserve in a nuclear reaction? Platinum is used in making dental alloys and implants. Platinum atoms have 78 electrons and 78 protons with 117 neutrons in the most abundant isotope. Los Alamos National Laboratory, LLC for the U.S. Department of Energy's NNSA. Platinum (Pt) has an atomic number of seventy-eight. Our Website follows all legal requirements to protect your privacy. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. If you continue to use this site we will assume that you are happy with it. m. Electrical resistivity and its converse, electrical conductivity, is a fundamental property of a material that quantifies how strongly it resists or conducts the flow of electric current. Interactive periodic table showing names, electrons, and oxidation states. Discoverer: McMillan, Edwin M. and Abelson, Philip H. Discoverer: Glenn T. Seaborg, Joseph W. Kennedy, Edward M. McMillan, Arthur C. Wohl, Discoverer: Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso, Discoverer: Glenn T. Seaborg, Ralph A. James, Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Kenneth Street, Jr., Albert Ghiorso, Discoverer: Stanley G. Thompson, Glenn T. Seaborg, Bernard G. Harvey, Gregory R. Choppin, Albert Ghiorso, Discoverer: Albert Ghiorso, Glenn T. Seaborg, Torbørn Sikkeland, John R. Walton, Discoverer: Albert Ghiorso, Torbjørn Sikkeland, Almon E. Larsh, Robert M. Latimer. Platinum, symbol Pt, has a Face Centered Cubic structure and Gray color. Fully descriptive writeups. A vertical column in the periodic table. Indeed, platinum will not oxidize in air no matter how strongly it is heated. Period. Substances in which electricity can flow are called conductors. Platinum group, six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and platinum (Pt). Semiconductors are materials, inorganic or organic, which have the ability to control their conduction depending on chemical structure, temperature, illumination, and presence of dopants. It has the third highest density, behind osmium and iridium. Various surgical tools, and laboratory utensils are made of platinum. He describes it as a strange metal found in mines between Panama and Mexico and wrote that no fire or any of the Spanish arts could melt it. It is found in gold-bearing deposits in the USA, Columbia, and the Ural Mountains. Its name is derived from the Spanish term platino, meaning "little silver". Platinum is a chemical element with the symbol Pt and atomic number 78. Image of atomic, experiment, element - 97979802 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. 2) You may not distribute or commercially exploit the content, especially on another website. The Platinum Group Metals These metals have similar properties and are often present in the same mineral ores. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. It has 78 protons and 78 electrons in the atomic structure. It is one of the rare elements in the Earth’s crust. It has remarkable resistance to corrosion, even at high temperatures, and is … 78. Platinum is a ductile and malleable silvery-white metal. In 1783 French chemist Francois Chabaneaus discovered and patented a method of producing workable platinu… Platinum is widely used as a catalyst for chemical reactions. It is present in a concentration of as low as around 0.005 ppm (5micrograms per kg) in the Earth’s crust. Visualize trends, 3D orbitals, isotopes, and mix compounds. Platinum is a chemical element in the periodic table that has the symbol Pt and atomic number 78. All are noble metals and transition metals in the d-block of the periodic table. The SI unit of electrical resistivity is the ohm-metre (Ω⋅m). Common chemical compounds are also provided for many elements. It is referred to as a “transition metal.” It is also one of the “platinum metals,” along with iridium, osmium, palladium, rhodium, and ruthenium. Transport of thermal energy in solids may be generally due to two effects: Copyright 2020 Periodic Table | All Rights Reserved |. In metals, and in many other solids, the atoms are arranged in regular arrays called crystals. Platinum is a 78. chemical element in the periodic table of elements. (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. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and Platinum occurs natively, accompanied by small quantities of iridium, osmium, palladium, ruthenium, and rhodium, all belonging to the same group of metals.These are found in the alluvial deposits of the Ural mountains, of Columbia, and of certain western American states. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. The Cookies Statement is part of our Privacy Policy. Platinum has a melting point of 1772 degrees C, the boiling point of 3827 +/- 100 degrees C, the specific gravity of 21.45 (20 degrees C), with a valence of 1, 2, 3, or 4. 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. Discovered in South America by Ulloa in 1735 and by Wood in 1741. Periodic Table of the Elements. Periodic Table of Elements Element Platinum Pt. The elements share certain desirable properties with platinum. National Institute of Standards and Technology, U.S. Department of Commerce. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and … Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. In the Periodic table of elements it is a d-block metal and it belong to the 10 th group and 6 th period. ), and shape. This article discusses how he and some of his predecessors accommodated the platinum group metals (pgms) in the Periodic Table, and it considers the placing of their three transuranic congeners: hassium (108Hs), meitnerium (109Mt) and darmstadtium (110Ds). Common chemical compounds are also provided for many elements. Our platinum page has over 260 facts that span 87 different quantities. Osmium (from Greek ὀσμή osme, "smell") is a chemical element with the symbol Os and atomic number 76. Various ores, including copper and nickel deposits contain platinum in combination with sulfide, arsenide and antimonides. While resistivity is a material property, resistance is the property of an object. Log in, This site uses cookies to improve your experience. 2. 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. Platinum was discovered by South American peoples who produced artifacts of a white gold-platinum alloy. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game! Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements. Platinum is used in jewelry, decoration and dental work. Members of a group typically have similar properties and electron configurations in their outer shell. Distribute or commercially exploit the content, especially on another website and as alloy with the structure! 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