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Determine the architectural units of silicates
This common architectural unit (SiO44- ) of silicates is of remarkable stability. The different silicates may be classified primarily according to the manner in which these SiO44-units become associated with one another. This results into continuous chains, sheets or complete three dimensional structures of silicates depending upon the manner in which the extension of linked tetrahedrons takes place in space. The stability of a given structure is maintained by the complex interplay of geometrical and electrical factors involving all the atoms in the final compound. The minerals in which one tetrahedral sheet and one octahedral sheet form the crystal unit, are known as 1:1 type minerals e.g., kaolin, while the crystal unit in which one octahedral sheet is sandwiched between two tetrahedral sheets is called 2:1 type minerals e.g. montmorillonite. When two tetrahedral sheets are p resent with one shared and one unshared octahedral sheet, a 2:1:1 type of mineral is obtained e.g. , structures with alternate mica layer followed by brucite layer.
what element is not grouped with others in a family? what is its usual atomic structure?
Aromaticity or aromatic character The characteristic behaviour of aromatic compounds is termed as aromaticity. Aromaticity is due to the extensive delocalisation of p-electron
what is the significance of BR in ghee?
Q. Show the Reactions of Boric Oxide? Boric oxide, B 2 0 3 , is the principal oxide of boron. It is also known as boron trioxide, boron sesquioxide and boric anhydride. It is p
group 14 reaction with oxygen
how to learn the periodic table
i need help filling in this equation __Na+__O2= __ Na2o
Elements of Group 13 are less metallic than those of groups 1 and 2. Within the group, there is a variation in metallic character. Boron, the smallest element in this group is a no
Please explain the calculations involved in Kjeldahl''s method for estimating nitrogen
a. Calculate the global radiation density (kWh/m 2 ) received by five panels located in San Jose on July 1, 2012: Panel A: Tilt=37.3 o , Azimuth=180 o (South) Panel B: Ti
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