Transcription of CHEMICAL BONDING AND MOLECULAR STRUCTURE
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CHEMICAL BONDING AND MOLECULAR STRUCTURE
100 CHEMISTRYS cientists are constantly discovering new compounds, orderlyarranging the facts about them, trying to explain with theexisting knowledge, organising to modify the earlier views orevolve theories for explaining the newly observed 4 After studying this Unit, you will beable to understand K ssel-Lewisapproach to CHEMICAL BONDING ; explain the octet rule and itslimitations, draw Lewisstructures of simple molecules; explain the formation of differenttypes of bonds; describe the VSEPR theory andpredict the geometry of simplemolecules; explain the valence bondapproach for the formation ofcovalent bonds; predict the directional propertiesof covalent bonds; explain the different types ofhybridisation involving s, p andd orbitals and draw shapes ofsimple covalent molecules; describe the MOLECULAR orbitaltheory of homonuclear diatomicmolecules; explain the concept of BONDING ANDMOLECULAR S
chemical bonds. In the case of sodium and chlorine, this can happen by the transfer of an electron from sodium to chlorine thereby giving the Na+ and Cl– ions. In the case of other molecules like Cl 2, H2, F2, etc., the bond is for med by the sharing of a pair of electr ons between the at oms. In the pr ocess each atom
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