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Magnesium hydroxide, Mg(OH) 2, is a white powder produced in large quantities from seawater by the addition of milk of lime (calcium hydroxide).It is the primary raw material in the production of magnesium metal and has been used as a fire-retardant additive. Bismuth is a chemical element with atomic number 83 which means there are 83 protons and 83 electrons in the atomic structure. Only about 5×10−8% of all matter in the universe is europium. The name samarium is after the mineral samarskite from which it was isolated. a) Explain why the metals magnesium and aluminium are good conductors of electricity Barium is the fifth element in group 2 and is a soft, silvery alkaline earth metal. The information contained in this website is for general information purposes only. A material that reduces the transfer of thermal energy is a(n) _____. Einsteinium is the seventh transuranic element, and an actinide. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. It is also sometimes considered the first element of the 6th-period transition metals and is traditionally counted among the rare earth elements. Yttrium is a chemical element with atomic number 39 which means there are 39 protons and 39 electrons in the atomic structure. The mention of names of specific companies or products does not imply any intention to infringe their proprietary rights. 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. The chemical symbol for Mercury is Hg. The chemical symbol for Tin is Sn. The chemical symbol for Lawrencium is Lr. Aluminium is a silvery-white, soft, nonmagnetic, ductile metal in the boron group. It is a soft, silvery-white alkali metal. All metals are good conductor of heat and electricity as they have plenty of free electrons in them. Zirconium is mainly used as a refractory and opacifier, although small amounts are used as an alloying agent for its strong resistance to corrosion. The heat transfer characteristics of a solid material are measured by a property called the thermal conductivity, k (or λ), measured in W/m.K. The chemical symbol for Iodine is 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. 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. 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. The chemical symbol for Rhenium is Re. The chemical symbol for Krypton is Kr. Although neodymium is classed as a rare earth, it is a fairly common element. Significant concentrations of boron occur on the Earth in compounds known as the borate minerals. When did organ music become associated with baseball? The chemical symbol for Samarium is Sm. Titanium is resistant to corrosion in sea water, aqua regia, and chlorine. Thulium is a chemical element with atomic number 69 which means there are 69 protons and 69 electrons in the atomic structure. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. Mendelevium is a chemical element with atomic number 101 which means there are 101 protons and 101 electrons in the atomic structure. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.

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