Silicon - Wikipedia
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 lustre, 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. It is relatively unreactive.
Silicon | Element, Atom, Properties, Uses, & Facts | Britannica
2024年12月6日 · Silicon, a nonmetallic chemical element in the carbon family that makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen. Learn more about the characteristics, distribution, and uses of silicon in this article.
Silicon | History, Uses, Facts, Physical & Chemical Characteristics
Silicon is a brittle and hard crystalline solid. It has blue-grey metallic lustre. Silicon, in comparison with neighbouring elements in the periodic table, is unreactive. The symbol for silicon is Si with atomic number 14. It has a very high melting and boiling point.
silicon summary | Britannica
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. It occurs ...
What is Silicon? Computing's Most Important Element, Explained
2 天之前 · Silicon (Si) is a metalloid, element number 14 on the periodic table. Like carbon, silicon has four bonding sites, but silicon is more than twice as heavy as carbon. The high melting point of ...
Silicon - Element information, properties and uses | Periodic Table
Element Silicon (Si), Group 14, Atomic Number 14, p-block, Mass 28.085. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Facts About Silicon - Live Science
2018年4月27日 · 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 - Simple English Wikipedia, the free encyclopedia
Silicon is a semiconductor, and much used in computers. A typical desktop computer contains several dozen integrated circuits made mostly of silicon. A super-pure isotope of silicon, silicon-28, can now be made 40 times more pure than before.
Silicon | Si (Element) - PubChem
Silicon dioxide (SiO 2), silicon's most common compound, is the most abundant compound in the earth's crust. It commonly takes the form of ordinary sand, but also exists as quartz, rock crystal, amethyst, agate, flint, jasper and opal.
Silicon Facts, Symbol, Discovery, Properties, Common Uses
What is Silicon. Silicon (pronunciation SIL-ee-ken [2]), represented by the chemical symbol or formula Si [1], is a semiconductor [20] belonging to the carbon family [23]. It can be of two types, amorphous powder and solid crystalline form. Naturally occurring Si is a mixture of three stable isotopes with mass numbers 28, 29 and 30 [1, 3].