Silicon (UK: Silicon) is a chemical element in the periodic table. With the symbol Si and atomic number 14, a metalloid form covalent tetrachloride. (Is there a valence 4) silicon reacts less similar elemental carbon. Is the element that has the most in the earth's crust is ranked second in volume of 25.7% by weight on the clay, feldspar (feldspar), granite, quartz and sand, mainly in the form of silicon dioxide (or silica) and silicates (compounds. The composition of silicon, oxygen and metals) silicon as the main component of glass, cement, ceramics, semiconductor parts, and silicone (plastic compounds that are often confused with silicon) silicon as a semiconductor widely used as semiconductors. conductor germanium have problems with the flow of reflux (reverse leakage current).
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