Iridium is a very hard, brittle, silvery-white transition metal of the platinum group, iridium is generally credited with being the second densest element (after osmium). It is the fifth most abundant element in Earth’s crust and the third most abundant metal, after iron and aluminium. Iron is a metal in the first transition series. The chemical symbol for Tantalum is Ta. The chemical symbol for Bromine is Br. Technetium is a chemical element with atomic number 43 which means there are 43 protons and 43 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. It is a soft, silvery-white alkali metal. The chemical symbol for Caesium is Cs. Zirconium is a lustrous, grey-white, strong transition metal that resembles hafnium and, to a lesser extent, titanium. Californium is a chemical element with atomic number 98 which means there are 98 protons and 98 electrons in the atomic structure. Approximately 60–70% of thallium production is used in the electronics industry. The chemical symbol for Uranium is U. The boiling point of a substance is the temperature at which it changes state from liquid to gas throughout the bulk of the liquid. Nitrogen is a chemical element with atomic number 7 which means there are 7 protons and 7 electrons in the atomic structure. The chemical symbol for Bismuth is Bi. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties. Related Topics . The chemical symbol for Yttrium is Y. Yttrium is a silvery-metallic transition metal chemically similar to the lanthanides and has often been classified as a “rare-earth element”. All of its isotopes are radioactive. It occurs on Earth as the decay product of various heavier elements. Aluminium has a high boiling point, but a lower melting point than silicon. 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. $\begingroup$ As u said covalent atoms are harder to break due to mutual sharing of electrons, the silicon would be expected to have a higher boiling point however it doesn't. The first alloy used on a large scale was bronze, made of tin and copper, from as early as 3000 BC. Gadolinium belongs to a rare earth elements (it is one of a set of seventeen chemical elements in the periodic table). Because of its high chemical reactivity, barium is never found in nature as a free element. Silicon is relatively inert, but it is attacked by dilute alkali and by halogens. Thulium is an easily workable metal with a bright silvery-gray luster. In general, boiling is a phase change of a substance from the liquid to the gas phase. Like the other metals of the platinum group, ruthenium is inert to most other chemicals. By mass, aluminium makes up about 8% of the Earth’s 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. It is even less abundant than the so-called rare earths. Platinum is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. The chemical symbol for Zinc is Zn. Like all elements with atomic number over 100, nobelium can only be produced in particle accelerators by bombarding lighter elements with charged particles.    Number of Neutrons Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Selenium is a nonmetal with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. This page was created by Yinon Bentor. ChEBI CHEBI:27573, CHEBI:37975: Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module. The chemical symbol for Silicon is Si. Antimony compounds have been known since ancient times and were powdered for use as medicine and cosmetics, often known by the Arabic name, kohl. Copper is a chemical element with atomic number 29 which means there are 29 protons and 29 electrons in the atomic structure. and Gay-Lussac, L.-J.    Date of Discovery Thallium is a chemical element with atomic number 81 which means there are 81 protons and 81 electrons in the atomic structure. The chemical symbol for Sulfur is S. Sulfur is abundant, multivalent, and nonmetallic. Pure germanium is a semiconductor with an appearance similar to elemental silicon. The chemical symbol for Fluorine is F. Fluorine is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. Thorium is moderately hard, malleable, and has a high melting point. Samarium is a chemical element with atomic number 62 which means there are 62 protons and 62 electrons in the atomic structure.    Boiling Point Although neodymium is classed as a rare earth, it is a fairly common element. A wide variety of silicon boiling point options are available to you, There are 75 suppliers who sells silicon boiling point on Alibaba.com, mainly located in Asia. 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 Francium is Fr. 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. 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 Carbon is C. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. In nuclear industry, especially natural and artificial samarium 149 has an important impact on the operation of a nuclear reactor. Titanium condenser tubes are usually the best technical choice, however titanium is very expensive material. Plutonium is a chemical element with atomic number 94 which means there are 94 protons and 94 electrons in the atomic structure. Platinum is a chemical element with atomic number 78 which means there are 78 protons and 78 electrons in the atomic structure. 113Cd has specific absorption cross-section. Erbium is a silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily unreactive substances become reactive; for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Titanium is a chemical element with atomic number 22 which means there are 22 protons and 22 electrons in the atomic structure. Below the boiling point, the liquid is the more stable state of the two, whereas above the gaseous form is preferred. The chemical symbol for Arsenic is As. Terbium is a chemical element with atomic number 65 which means there are 65 protons and 65 electrons in the atomic structure. Sodium is a soft, silvery-white, highly reactive metal. The chemical symbol for Mendelevium is Md. 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