LR 10 08 2014 1 What is the electron domain and molecular geometry for species with the given number of electron pairs around the central atom and will the species be polar or nonpolar Assume that all the bonding pairs are the same atoms Assume that the bonding pairs attach the same atoms to the central atom Electron domain Molecular geometry square planar Polarity a 5 bonding and 1 lone pair octahedral b 4 bonding and 1 lone pair trigonal bipyramidal see saw c 4 bonding pairs tetrahedral d 3 bonding and 1 lone pair tetrahedral e 2 bonding and 2 lone pairs tetrahedral bent f 2 bonding pairs linear linear g 3 bonding and 2 lone pairs trigonal bipyramidal T shaped h 2 bonding and 3 lone pair trigonal bipyramidal linear nonpolar i 4 bonding and 2 lone pairs octahedral nonpolar tetrahedral trigonal pyramidal square planar polar polar nonpolar polar polar nonpolar polar 2 In which of the above molecular geometries are the bond angles less than the expected bond angles based on electron domain geometry The ones that have a lone pair a b d e g 3 According to Valence Bond Theory molecules form because the potential energy of the molecule is lower than the potential energy of the isolated atoms 4 Determine the electron domain geometry molecular geometry of molecules ions and hybridization of the central atom for the following Electron domain Molecular Geometry Hybridization XeF5 octahedral square planar sp3d2 NClO trigonal planar bent sp2 NCO linear linear sp SnCl3 tetrahedral sp3 trigonal pyramidal IF3 trigonal bipyramidal T shapted sp3d AsF4 trigonal bipyrmaidal see saw sp3d BrO2 tetrahedral bent sp3 BCl3 trigonal planar trigonal planar sp2 CO2 linear linear sp 5 6 7 What is the hybridization of chlorine and what are the bond angles in one of the species has a lone pair a ClO2 sp3 less than 109 5 b ClO3 sp3 less than 109 5 c ClO4 sp3 109 5 What is the change in hybridization if any for the underlined atom in the following equations a BF3 NaF Na BF4 sp2 sp3 b HC CH H2 sp c SiF4 2F SiF62 H2C CH2 sp2 sp3 sp3d2 If the molecular geometry is seesaw what is the hybridization on the central atom The electron domain geometry is trigonal bipyramidal and the hybridization on the central atom is sp3d
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