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The silicon is selectively doped with tiny amounts of boron, gallium, phosphorus or arsenic to control its electrical properties. Granite and most other rocks contain a wide variety of complex silicate minerals, as well as silica (silicon dioxide).
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.
Physical 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.
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. It is relatively unreactive.
Physical Properties of Silicon. Chemical Properties of Silicon. Chemical Reaction of Silicon. Uses of Silicon. Electronic Uses. Construction Industry. Ceramics. Industrial Uses. Biological Importance of Silicon. Health Effects of Silicon. Environmental Effects of Silicon. Fun and Important Facts of Silicon. References. Interesting Science Videos.
Physical properties Silicon is a metalloid, an element with properties of both metals and non-metals. Silicon exists in two allotropic forms. Allotropes are forms of an element with different physical and chemical properties. One allotrope is in the form of shiny, grayish-black, needle-like crystals, or flat plates.
Silicon physically appears as a metal, but it displays strong non-metal properties. Thus, this chemical element is labeled as one of the seven metalloids of the periodic table. Silicon reaches its boiling point at 3265°C, 5909°F, 3538 K, while the melting point is achieved at 1414°C, 2577°F, 1687 K.
Chemical, physical and material properties and data of the chemical element Silicon.
Physical and chemical properties of Silicon: general data, thermal properties, ionization energies, isotopes, reduction potentials, abundance of elements, crystallographic data.
Get periodic table facts on the chemical and physical properties of the element silicon. Silicon is atomic number 14 or Si.