SiF6 stands for silicon hexafluoride, but it can only exist as an ion, therefore its correct symbol is SiF62- (silicon hexafluoride ion) and it has an octahedral molecular shape
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The central atom in Sif6 2- is silicon (Si). To determine the hybridization, we count the number of regions of electron density around the silicon atom, which in this case is six. Therefore, the hybridization of Si in Sif6 2- is sp3d2.
The geometry is octrahedral.
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The central atom in SIF6^2- is sulfur. The sulfur atom in SIF6^2- has an sp3d2 hybridization, which includes one s orbital, three p orbitals, and two d orbitals to form six sp3d2 hybrid orbitals around the sulfur atom.
Fe2(SiF6)3 Ferric hexafluorosilicate contains Fe3+ and SiF62- Its alternative name is iron(III) hexafluorosilicate
The chemical formula for aluminum silicate is Al2SiO5.
The hexafluorosilicate ion, SiF6^2-, has a total of 48 valence electrons available for constructing its Lewis structure.
In a sufficiently oxidizing environment, silicon can form up to six covalent bonds, as in SiF6.
H2SIF6, or hydrogen hexafluorosilicate, is formed through the reaction of silicon dioxide (SiO2) with hydrofluoric acid (HF). This reaction typically occurs when silica is treated with an excess of HF, leading to the generation of hexafluorosilicate ions (SiF6²⁻) in solution, which can then combine with hydrogen ions (H⁺) to produce H2SIF6. This compound is often encountered in industrial processes involving fluorosilicate salts or as a byproduct in the production of silicon.
Firstly, silicon and oxygen. for hexafluorosilicate ([SiF6]2−), fluorine hydrogen also exists in hexahydroxysilicate ([Si(OH)6]2−) also aluminum in Tectosilicates ([AlxSiyO2(x+y)]x−)
aluminium fluosilicate or aluminium silicofluoride is a comppound with fomrula Al2(SiF6)3, white powder, slightly soluble in coldwater, readily soluble in hot water; use: artificial gems, enamls, glass
179 and 103 degrees source and excellent explanation: http://www.madsci.org/posts/archives/2001-02/983324692.Ch.r.html