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Element Silicon (Si), Group 14, Atomic Number 14, p-block, Mass 28.085. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Apr 27, 2018 · Silicon is the seventh-most abundant element in the universe and the second-most abundant element on the planet, after oxygen, according to the Royal Society of Chemistry. About 25 percent of the...
silicon, Nonmetallic to semimetallic chemical element, chemical symbol Si, atomic number 14. Second only to oxygen in abundance in Earth’s crust, it never occurs free but is found in almost all rocks and in sand, clay, and soils, combined with oxygen as silica (silicon dioxide, SiO 2 ) or with oxygen and metals as silicate minerals.
Jul 1, 2018 · Silicon is a metalloid, most often used as a semiconductor. The pure element has a metallic luster. Martin Konopka / EyeEm / Getty Images. By. Anne Marie Helmenstine, Ph.D. Updated on July 01, 2018. Silicon is element number 14 on the periodic table, with the element symbol Si.
Silicon is a chemical element; it has symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic luster, and is a tetravalent metalloid and semiconductor. It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it.
Silicones are synthetic organosilicon oxides composed of the elements silicon, oxygen, carbon, and hydrogen; they are used as lubricants, hydraulic fluids, waterproofing compounds, varnishes, and enamels because, as a class, they are chemically inert and unusually stable at high temperatures.
Jul 3, 2019 · By. Anne Marie Helmenstine, Ph.D. Updated on July 03, 2019. Silicon is a metalloid element with atomic number 14 and element symbol Si. In pure form, it is a brittle, hard solid with a blue-gray metallic luster. It is best known for its importance as a semiconductor. Fast Facts: Silicon. Element Name: Silicon. Element Symbol: Si. Atomic Number: 14.
