A horizontal row in the periodic table. and an insulator, such as glass. Various surgical tools, and laboratory utensils are made of platinum. 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. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and … 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 is unaffected by air and water , but will dissolve in hot aqua regia, in hot concentrated phosphoric and sulphuric acids, and in molten alkali. Last accessed: 27 August 2020. In metals, and in many other solids, the atoms are arranged in regular arrays called crystals. Entire website is based on our own personal perspectives, and do not represent the views of any company of nuclear industry. 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). On the periodic table of elements, it is found in Group 10 and in Period 6 between iridium and gold. Insulators, on the other hand, are made of a wide variety of materials depending on factors such as the desired resistance. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and 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. Semiconductors are materials, inorganic or organic, which have the ability to control their conduction depending on chemical structure, temperature, illumination, and presence of dopants. 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. from ionizing radiation) to cross the band gap and to reach the conduction band. Periodic Table of Elements Element Platinum Pt. The metal was used by pre-Columbian Indians. The forces of chemical bonding causes this repetition. 3. 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. Used by the pre-Columbian Indians of South America, platinum wasn't noticed by western scientists until 1735. Over twenty-five years ago McDonald and Hunt (1) … In contrast to conductors, electrons in a semiconductor must obtain energy (e.g. The most com… Platinum is widely used as a catalyst in exhaust system of internal combustion engine where it is part of the catalytic converter. Platinum is ductile, malleable, silvery-white or gray-white in color, and non-reactive. Periodic Table of the Elements. National Institute of Standards and Technology, U.S. Department of Commerce. Platinum is a chemical element in the periodic table that has the symbol Pt and atomic number 78. Conductors are made of high-conductivity materials such as metals, in particular copper and aluminium. Atomic Number – Does it conserve in a nuclear reaction? 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. 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. al. To find out more, see our. 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. Platinum is used in making dental alloys and implants. Platinum is mostly present in its native form and as alloy with iron. Interactive periodic table with up-to-date element property data collected from authoritative sources. There are 14 general types of such patterns known as Bravais lattices. Platinum is one of the least reactive metals. Period. In 1783 French chemist Francois Chabaneaus discovered and patented a method of producing workable platinu… 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. All are noble metals and transition metals in the d-block of the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Electrical resistance is expressed in Ohms. Interactive periodic table showing names, electrons, and oxidation states. Common chemical compounds are also provided for many elements. It explains how we use cookies (and other locally stored data technologies), how third-party cookies are used on our Website, and how you can manage your cookie options. The SI unit of electrical resistivity is the ohm-metre (Ω⋅m). Platinum is a chemical element with the symbol Pt and atomic number 78. Note that, electrical resistivity is not the same as electrical resistance. Substances in which electricity can flow are called conductors. Common chemical compounds are also provided for many elements. Our Website follows all legal requirements to protect your privacy. Platinum is used in jewelry, decoration and dental work. Discoverer: Corson, Dale R. and Mackenzie, K. R. The actinide or actinoid series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium. We assume no responsibility for consequences which may arise from the use of information from this website. It is a malleable, highly precious member of the transition metals group. Pronunciation: Plat-a-nam Appearance: Silvery white Mass Number: 195 Standard Atomic weight: 195.084 g/mol Atomic number (Z): 78 Electrons: 78 Protons: 78 Neutrons: 117 Period: 6 Group: 10 Block: d Element category: Transition metal Electrons per shell: K2, L8, M18, N32, O17, P1 Electron configuration: 1s22s22p63s23p63d104s24p64d105s25p64f145d96s1 The year 2007 marked the centenary of the death of Dmitri Mendeleev (1834–1907). It has 78 protons and 78 electrons in the atomic structure. It has the third highest density, behind osmium and iridium . Periodic Table of the Elements. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Osmium is the densest naturally occurring element, with an experimentally measured (using x-ray crystallography) density of 22.59 g/cm 3. The information contained in this website is for general information purposes only. The symbol of resistivity is usually the Greek letter ρ (rho). Platinum – Periodic Table – Atomic Number – Mass – Radius – Density. 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. and Gay-Lussac, L.-J. 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. Atomic Mass Number – Does it conserve in a nuclear reaction? 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. The elements share certain desirable properties with platinum. It is as resistant as gold to corrosion and tarnishing. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. 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). The most important use of platinum is in vehicles, as a catalytic converter, facilitating the complete combustion of unburned hydrocarbon passing through the exhaust. Platinum is a transition metal element. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. 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 a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Transport of thermal energy in solids may be generally due to two effects: Copyright 2020 Periodic Table | All Rights Reserved |. The Cookies Statement is part of our Privacy Policy. Log in, This site uses cookies to improve your experience. A crystal lattice is a repeating pattern of mathematical points that extends throughout space. Platinum is used in making ornaments, artifacts and jewellery. The elements all possess a silvery white colour—except osmium, which is bluish white.