
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 non-metal and …
Silicon | Element, Atom, Properties, Uses, & Facts | Britannica
Mar 27, 2025 · 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 …
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 …
Silicon | Periodic Table | Thermo Fisher Scientific - US
Present in the sun and stars, silicon is the second most abundant element, making up over a quarter of the earth’s crust. Silicon is important in both animal and plant life. However, it can …
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 …
Silicon - Simple English Wikipedia, the free encyclopedia
Silicon is a chemical element. Its atomic number is 14 on the periodic table. Its symbol is Si. It is a hard, brittle crystalline solid. It is a tetravalent metalloid and semiconductor. It is a member of …
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 …
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 …
Silicon Facts (Atomic Number 14 or Si) - ThoughtCo
Jul 3, 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 …
Silicon - New World Encyclopedia
Silicon (chemical element symbol Si, atomic number 14) is a member of a group of chemical elements classified as metalloids. It is less reactive than its chemical analog carbon.