| silicon dioxide |
chemical name of quartz, a mineral used to make glass
Ãâó: www.msnucleus.org/membership/html/k-6/rc/dictionar...
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| silica |
Silica is a very common mineral composed of silicon and oxygen (SiO 2 ). Silicates make up about 95% of the Earth's crust. silicates Silicates are minerals composed of silicon and oxygen with one or more other elements. Silicates make up about 95% of the Earth's crust.
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| silica |
A hard, glassy mineral. Quartz and opal are two forms of silica. Since much sand is made of quartz, silica is very common in sand. Some marine organisms use silica to build their shells.
Ãâó: www.reefed.edu.au/glossary/s.html
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| silicon |
atomic symbol, Si, silicon is the 14th element in the periodic table (atomic number 14) with an atomic weight of 28.09. Silicon is a group IV element and is a semiconductor at room temperature with an energy gap of 1.11eV. Silicon is far and away the most widely used semiconductor material.
Ãâó: www.icknowledge.com/glossary/s.html
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| silicon dioxide |
chemical formula SiO 2 , silicon dioxide is an excellent insulator with a dielectric constant of 3.9, a breakdown strength of 107 V/cm, and is thermodynamically stable on silicon up to the silicon melting temperature.
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