In nuclear reactors, promethium equilibrium exists in power operation. The density of silicon is 2.3296 gram per cubic centimeter. This website does not use any proprietary data. This element is denoted as 'Si'. TheÂ chemical symbolÂ for Erbium isÂ Er. Al (OH) 3 Word equation. Main purpose of this project is to help the public learn some interesting and important information about the peaceful uses of nuclear energy. It is even less abundant than the so-called rare earths. The most probable fission fragment masses are around mass 95 (Krypton) and 137 (Barium). Mercury is commonly known as quicksilver and was formerly named hydrargyrum. It is the fourth most common element in the Earthâs crust. The information contained in this website is for general information purposes only. TheÂ chemical symbolÂ for Iodine isÂ I. Iodine is the heaviest of the stable halogens, it exists as a lustrous, purple-black metallic solid at standard conditions that sublimes readily to form a violet gas. TheÂ chemical symbolÂ for Potassium isÂ K. Potassium was first isolated from potash, the ashes of plants, from which its name derives. Neptunium metal is silvery and tarnishes when exposed to air. Because of its high chemical reactivity, barium is never found in nature as a free element. TheÂ chemical symbolÂ for Uranium isÂ U. By mass, aluminium makes up about 8% of the Earthâs crust; it is the third most abundant element after oxygen and silicon and the most abundant metal in the crust, though it is less common in the mantle below. TheÂ chemical symbolÂ for Sodium isÂ Na. Iodine is the least abundant of the stable halogens, being the sixty-first most abundant element. RutheniumÂ is a chemical element withÂ atomic numberÂ 44Â which means there are 44 protons and 44 electrons in the atomic structure. Silicones rubber is used in waterproofing systems in bathrooms, roofs, and pipes. ThalliumÂ is a chemical element withÂ atomic numberÂ 81Â which means there are 81 protons and 81 electrons in the atomic structure. Various applications of silicon require it in a pure form which is known as hyper-pure silicon. LutetiumÂ is a chemical element withÂ atomic numberÂ 71Â which means there are 71 protons and 71 electrons in the atomic structure. What are the Health Effects of Silicon? TheÂ chemical symbolÂ for Nitrogen isÂ N. Nitrogen is a colourless, odourless unreactive gas that forms about 78% of the earthâs atmosphere. Unlike carbon tetrahalides, these readily hydrolyze in water. TheÂ chemical symbolÂ for Tellurium isÂ Te. Silicon used in electronics acts as metals, while the glass which is a silicon compound has non-metallic qualities. All isotopes of radium are highly radioactive, with the most stable isotope being radium-226. Note that, eachÂ elementÂ may contain moreÂ isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. ScandiumÂ is a chemical element withÂ atomic numberÂ 21Â which means there are 21 protons and 21 electrons in the atomic structure. Electronic configuration of silicon is [Ne] 3s. The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. Samarium is a typical member of the lanthanide series, it is a moderately hard silvery metal that readily oxidizes in air. Iron is a metal in the first transition series. But the percentage yield of the reaction is 60.0%. DysprosiumÂ is a chemical element withÂ atomic numberÂ 66Â which means there are 66 protons and 66 electrons in the atomic structure. Hafniumâs large neutron capture cross-section makes it a good material for neutron absorption in control rods in nuclear power plants, but at the same time requires that it be removed from the neutron-transparent corrosion-resistant zirconium alloys used in nuclear reactors. Silicon in its purest form is an intrinsic semiconductor. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. (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, JÃ¶ns Jacob/Klaproth, Martin Heinrich. It is the heaviest essential mineral nutrient. Berkelium is a member of the actinide and transuranium element series.