The properties of glass explained by the bonding of Silicon and Oxygen.

The properties of scratch lie within the bonding structure of silicon. thermonuclear upshot 14 cannot contrive strong ð bonds with atomic number 8 by using its valence 3p orbitals. This is because of the large nuclear radius of the silicon atom and its orbitals which results in a little effective overlap with the smaller oxygen orbitals. The silicon atoms hence form four single bonds to settle with the octet rule. Therefore, instead of forming a SiO2 covalent molecule, it will form a SiO4 covalent net move (although it is still represented in its molecular state as SiO2). The silicon atom is found at the centre of a tetrahedron, with shared oxygen atoms on the outside. chicken feed is generally classified as being chemically ineffectual making it a highly suitable material for windows and containers. This is because codswallop reacts to very few chemicals. However, provide does react with hot, concentrated alkalis and acids. Alkalis function down by attacking the silicon dioxide directly and change state the glass in, and acids work by attacking the alkalis in the glass. The corrosion of glass by acids is slowed down because a porous surface of silica is leftover with holes where the alkalis had been. This porous surface decreases the surface area of the reacting acid, then lag it down. Water corrosion is similar to the acids.

Glass differs from beguile glass (sand) in that quartz is a solid and glass is a supercooled liquid. Quartz has a finite structure, whereas glass does not. In quartz, many covalent bonds moldiness be broken for the net profit to melt. This is e xemplified by the fact that it must be heate! d to 1500°C to melt. When quartz is melted and in the process of cooling, the atoms form in irregular positions and are incompetent of reaching a electrostatic finite arrangement and hold in glass properties of a supercooled liquid. If you want to get a overflowing essay, order it on our website: OrderCustomPaper.com

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