VSEPR - At the end of each balloon will be a peripheral...

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V V alence alence S S hell hell E E lectron lectron P P air air R R epulsion epulsion Theory Theory Planar triangular Tetrahedral Trigonal bipyramidal Octahedral
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VSEPR Theory VSEPR Theory Based on Lewis structures we can know the shape or “geometry” of molecules The theory that predicts geometry (based on Lewis structures) is abbreviated VSEPR VSEPR (pronounced “vesper”) stands for Valence Shell Electron Pair Repulsion VSEPR, as the name suggests, predicts geometry based on the repulsion of electron pairs (in bonds or by themselves) Electrons around the central nucleus repel each other. Thus, resulting structures have atoms maximally spread out (balloon demo)
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VSEPR overview VSEPR overview The balloons represent electron clouds.
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Unformatted text preview: At the end of each balloon will be a peripheral atom. The balloons meet at a central atom. • Each shape containing 2-6 peripheral atoms has a name (you will have to know these) • Sometimes the molecules are represented by AX Y , where Y is the # of peripheral atoms • AX 2 = linear • AX 3 = planar triangular • AX 4 = tetrahedral (tetra = 4 faces) • AX 5 = trigonal bipyramidal (2 pyramids) • AX 6 = octahedral (octa = 8 faces) Planar triangular Tetrahedral Trigonal bipyramidal Octahedral See tomorrow’s lesson for the remaining slides from today’s handout For more lessons, visit www.chalkbored.com...
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VSEPR - At the end of each balloon will be a peripheral...

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