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MoSi2 silicon is a chemical element, its chemical symbol is Si, formerly known as silicon. Atomic number 14, relative atomic mass 28.09, amorphous silicon and crystalline silicon are two allotropes, which belongs to the class of metal elements on the periodic table group IVA. Silicon is also a very common element, but it is rarely in elemental form in nature occur, but in the form of complex silicates or silica, is widely present in the rocks, gravel, dust being. Silicon reserves in the universe came in eighth. In the earth's crust, it is the second most abundant element, constituting 25.7% of the total mass crust, after oxygen first one (49.4%). 
 

The origin of the silicon silicon molybdenum rods names, silex from Latin, silicis, meaning flint (flint). In the early Republic, this element of the original scholars translated as "silicon" and make it read as "xi (xi Kyu beside readable indeed sound like furrow word)" (also, "silicon" word of the "Hua" is a word of Chinese, read huo). However, in time and space, because the program has not been popularizing spelling, generally a large number of misread as gui. Since the chemical element named after the original translation of the word in addition to China, mostly with transliteration Chemical Society noticed this problem, so he created "silicon" word to avoid misunderstanding. Taiwan adopted a "silicon" word so far. 
 

In 1787, Lavoisier first discovered the presence of silicon in the rock. However, in 1800, David be mistaken for one of the compounds. 1811, cover - Lussac and Thénard may have been by elemental potassium and silicon tetrafluoride was prepared by mixing and heating of impure amorphous silicon. 1823, first as a silicon element is Berzelius discovered and refined after a year out of the amorphous silicon, its methods and cover - Lussac method used roughly the same. He then repeated cleaning method also used to elemental silicon purification. 

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