Neodymium is not found naturally in metallic form or unmixed with other lanthanides, and it is usually refined for general use. Nickel belongs to the transition metals and is hard and ductile. Boron (B), chemical element, semimetal of main Group 13 (IIIa, or boron group) of the periodic table, essential to plant growth and of wide industrial application. Boron is the first element in the thirteenth column of the periodic table. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure. Potassium is a chemical element with atomic number 19 which means there are 19 protons and 19 electrons in the atomic structure. Promethium is one of only two such elements that are followed in the periodic table by elements with stable forms. This pentahydrate is used in very large quantities in the manufacture of insulation fiberglass and sodium perborate bleach. The chemical symbol for Antimony is Sb. Use of borax as a mild antiseptic is minor in economical terms. Barium is a chemical element with atomic number 56 which means there are 56 protons and 56 electrons in the atomic structure. Radon occurs naturally as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead. Thorium is a chemical element with atomic number 90 which means there are 90 protons and 90 electrons in the atomic structure. The chemical symbol for Lithium is Li. Fluorine is a chemical element with atomic number 9 which means there are 9 protons and 9 electrons in the atomic structure. The chemical symbol for Strontium is Sr. Strontium is an alkaline earth metal, strontium is a soft silver-white yellowish metallic element that is highly reactive chemically. The chemical symbol for Cerium is Ce. Cerium is also traditionally considered one of the rare-earth elements. Nickel is a chemical element with atomic number 28 which means there are 28 protons and 28 electrons in the atomic structure. Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA The chemical symbol for Palladium is Pd. Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Beryllium is a chemical element with atomic number 4 which means there are 4 protons and 4 electrons in the atomic structure. The chemical symbol for Barium is Ba. Tellurium is a brittle, mildly toxic, rare, silver-white metalloid. It belongs is period 2 and group 13. It is fairly soft and slowly tarnishes in air. Lead is widely used as a gamma shield. Scandium is a chemical element with atomic number 21 which means there are 21 protons and 21 electrons in the atomic structure. Chromium is a steely-grey, lustrous, hard and brittle metal4 which takes a high polish, resists tarnishing, and has a high melting point. The chemical symbol for Platinum is Pt. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Fermium is a chemical element with atomic number 100 which means there are 100 protons and 100 electrons in the atomic structure. Ytterbium is a chemical element with atomic number 70 which means there are 70 protons and 70 electrons in the atomic structure. The chemical symbol for Sodium is Na. At 0.099%, phosphorus is the most abundant pnictogen in the Earth’s crust. Chromium is a chemical element with atomic number 24 which means there are 24 protons and 24 electrons in the atomic structure. It is found in borax, boric acid, colemanite, kernite, ulexite and borates. Polonium is a rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth. Boron is a poor conductor of electricity at room temperature but a good conductor at high temperature. The bulk properties of astatine are not known with any certainty. Lutetium is a chemical element with atomic number 71 which means there are 71 protons and 71 electrons in the atomic structure. The chemical symbol for Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. The chemical symbol for Selenium is Se. Boron is in those cleaning compounds. 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. Pure radium is silvery-white alkaline earth metal. Chemically, indium is similar to gallium and thallium. It is occasionally found in native form as elemental crystals. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. 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, Copyright 2020 Periodic Table | All Rights Reserved |. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. 2) You may not distribute or commercially exploit the content, especially on another website. Interactive periodic table showing names, electrons, and oxidation states. Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels. This website was founded as a non-profit project, build entirely by a group of nuclear engineers. Hafnium is a lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. E. Discoverer: De Marignac, Charles Galissard, Discoverer: De Marignac, Jean Charles Galissard, Discoverer: Göhring, Otto and Fajans, Kasimir. The chemical symbol for Chlorine is Cl. The chemical symbol for Iron is Fe. Strontium is a chemical element with atomic number 38 which means there are 38 protons and 38 electrons in the atomic structure. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Boron compounds, such as borax and boric acid, have many uses. In nuclear industry boron is commonly used as a neutron absorber due to the high neutron cross-section of isotope 10B. Boron, symbol B, has a Simple Trigonal structure and Black color. 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. In nuclear industry cadmium is commonly used as a thermal neutron absorber due to very high neutron absorption cross-section of 113Cd. Elemental sulfur is a bright yellow crystalline solid at room temperature. 1) You may use almost everything for non-commercial and educational use. Discoverer: Scientists at Dubna, Russia (1964)/Albert Ghiorso et. Fermium is a member of the actinide series. Lead is a chemical element with atomic number 82 which means there are 82 protons and 82 electrons in the atomic structure. Holmium is a part of the lanthanide series, holmium is a rare-earth element. Californium is an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye (after einsteinium). Major advantage of lead shield is in its compactness due to its higher density. The chemical symbol for Bismuth is Bi. Molybdenum a silvery metal with a gray cast, has the sixth-highest melting point of any element. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). The chemical symbol for Europium is Eu. It is one of the least reactive chemical elements and is solid under standard conditions. The chemical symbol for Hafnium is Hf. Discoverer: Davy, Sir H. and Thénard, L.-J.

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