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Silicon is the 14th element in the periodic table and has a symbol of Si and atomic number of 14. It has an atomic weight of 28.085 and a mass number of 28. Silicon has fourteen protons and fourteen neutrons in its nucleus, and fourteen electrons in three shells.
The element silicon is used extensively as a semiconductor in solid-state devices in the computer and microelectronics industries. For this, hyperpure silicon is needed. The silicon is selectively doped with tiny amounts of boron, gallium, phosphorus or arsenic to control its electrical properties.
[a] Silicon is the eighth most common element in the universe by mass, but very rarely occurs as the pure element in the Earth's crust. It is widely distributed throughout space in cosmic dusts, planetoids, and planets as various forms of silicon dioxide (silica) or silicates.
15 Οκτ 2014 · Photographs and descriptions of many samples of the element Silicon in the Periodic Table.
Description: 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 non metal and semiconductor. Silicon (Si) element is a significant element that is essential for several physiological and metabolic processes in plants.
Physical properties. Thermal properties. Atomic properties. Electron configuration for silicon. The history of Silicon. Periodic table history. Identifiers. List of unique identifiers for Silicon in various chemical registry databases.
Silicon is the second most abundant element in earth’s crust. It was discovered in 1823 by Jöns Jacob Berzelius. Silicon has tremendous uses including manufacturing of ceramic, glass, synthetic polymers and is an essential part of integrated circuits.
