'Molecular geometry' diaporamas de présentation

Bonding and Molecular Structure

Bonding and Molecular Structure. Goals: Understand the differences between ionic and covalent bonds . Draw Lewis electron dot structures for small molecules and ions.

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Five Basic Molecular Structures

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Ch. 10: Chemical Bonding

Ch. 10: Chemical Bonding. Dr. Namphol Sinkaset Chem 152: Introduction to General Chemistry. I. Chapter Outline. Introduction Lewis Dot Structures Ionic Compounds Covalent Compounds Shapes of Molecules Polar Bonds and Polar Molecules. I. Introduction.

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AP Review: Unit 6A

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Chapter 13 Structure and Shape

Chapter 13 Structure and Shape. Drawing Lewis Diagrams. 1 Count the total number of valence electrons. If the species is an ion, the number of valence electrons must be adjusted for the charge on the ion. Determine the number of electron pairs.

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Molecular Geometry

Molecular Geometry. Chapter 9. Molecular Shapes. The shape of a molecule plays an important role in its reactivity. By noting the number of bonding and nonbonding electron pairs we can easily predict the shape of the molecule. What Determines the Shape of a Molecule?.

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Chemistry 120

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Experiment 3:

Experiment 3:. STEREOCHEMISTRY AND MOLECULAR MODELING OF CYCLOALKANES. OBJECTIVES. To learn how to construct various cyclohexane conformers using handheld molecular models and the HyperChem molecular modeling program.

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MOLECULAR GEOMETRY

MOLECULAR GEOMETRY. Bonding Unit. MOLECULAR GEOMETRY. VSEPR V alence S hell E lectron P air R epulsion theory. Most important factor in determining geometry is relative repulsion between electron pairs. Molecule adopts the shape that minimizes the electron pair repulsions.

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Covalent Compounds

Molecular Shapes. Covalent Compounds. Learning Goals. Summarize the VSEPR bonding theory. Predict the shape of, and the bond angles in, a molecule . Define hybridization. VSEPR Model. The shape of a molecule determines many of its physical and chemical properties. VSEPR Model.

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Bonding

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Molecular Geometry

Molecular Geometry. VSEPR Theory. Molecular geometry. Area of chemistry that deals with the shape of molecules . Shape determines many properties about a molecule: Reactivity Smell Taste. Molecular shape.

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Warm-Up: to be turned in

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Resonance

Resonance. Example : O 3 Experimental evidence shows each of the oxygen-oxygen bonds are identical . There are certain cases in which a single Lewis structure cannot correctly describe a molecule. These molecules exhibit a phenomena known as resonance .

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VSEPR

VSEPR. Google- youtube : VSEPR theory and VSEPR theory introduction, part s 2 and 3. VSEPR. Bonding electrons + lone pairs =2. Electron Geometry = Linear MolecularGeometry = Linear. VSEPR. Bonding electrons + lone pairs =3. Electron Geometry = Trigonal Planar

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Molecular Geometry

Molecular Geometry. Notes 2. Molecules with Expanded Valence Shells. Atoms that have expanded octets have AB 5 (trigonal bi- pyramidal or AB 6 octahedral, electron domain geometries. Trigonal bipyramidal structures have a plane containing three electron pairs

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Molecular Geometry and Bonding Theories

Molecular Geometry and Bonding Theories. Notes 1. Molecular Shapes. Lewis Structures give atomic connectivity they tell what is physically connected to which atom but it tells little about geometry. The shape of a molecule is determined by the bond angle

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Studio 4b: Shape Sorter

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Valence Bond & hybridization

Valence Bond & hybridization. The orbital pattern valence electrons for 6 C are: __ __ __ __ 2s 2p x 2p y 2p z The 4 bonds in CH 4 are identical. The explanation is that valence electrons hybridize into an

507 views • 7 slides