8.5 Drawing Lewis Dot Structures

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Lewis Dot Structures, Electron and Molecular Geometry

Exercise \(\PageIndex{1}\)

Draw the best Lewis Dot Structure for each of the following species. Give the name of the electronic arrangement and the name for the molecular geometry for each of the species.

BeF₂, BCl₃, CCl₄, PBr₅, SI₆, BH₂^–, NI₃, ClF₄⁺, SF₅^–

Answer

Species Name	Lewis Dot Structure	Electron Geometry	Molecular Geometry
BeF₂		linear	linear
BCl₃		trigonal planar	trigonal planar
CCl₄		tetrahedral	tetrahedral
PBr₅		trigonal bipyramidal	trigonal bipyramidal
SI₆		octahedral	octahedral
BH₂^–		trigonal planar	bent
NI₃		tetrahedral	trigonal pyramidal
ClF₄⁺		trigonal bipyramidal	see saw
SF₅^–		octahedral	square pyramidal

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