Estrutura de Lewis XeF4

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Learn to determine if XeF2 is polar or nonpolar based on the Lewis Structure and the molecular geometry (shape). • We start with the Lewis Structure and look and the polarity of the individual bonds in Xenon difluoride based on the electronegativity difference between atoms. Then we will use VSEPR to determine the shape of the molecule and look at how the shape of the molecule allows us to determine if the entire molecule is polar or nonpolar. • Lewis Structure for XeF2: • XeF2 Lewis Structure - How to Draw th... • If you look at the Lewis Structure for XeF2 it appears to be a symmetrical molecule. However, to determine if XeF2 is polar we consider the molecular geometry. A polar molecule results from an unequal/unsymmetrical sharing of valence electrons. For Xenon difluoride the molecule is symmetrical and therefore it is a nonpolar molecule. • While there may be unequal sharing of electrons in the individual bonds, in a nonpolar molecule like XeF2 these bonds are evenly distributed and cancel out. There is no net dipole and the XeF2 is non-polar. • More Learning Resources • • Polar and Non-Polar Tutorial: • Polar, Non-Polar, and Ionic Compounds... • • Drawing Lewis Structures: • Lewis Structures for Covalent Molecul... • • Determining Molecular Geometry: • Molecular Geometry: Rules, Examples, ... • • Periodic Table with Electronegativity Values: https://en.wikipedia.org/wiki/Electro...) • • Molecular Geometry App Used in Video: https://phet.colorado.edu/sims/html/m... • Get more chemistry held at www.Breslyn.org . • Drawing/writing done in InkScape (www.InkScape.org). Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).

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