CHEM 1210 Chapter Notes - Chapter 9: Lewis Structure, Diamagnetism, Electron Configuration

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burgundyscorpion289

23 Feb 2015

School

Ohio State University

Department

Chemistry

Course

CHEM 1210

Professor

All

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CHEM 1210 Full Course Notes

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Document Summary

The arrangement of bond angles among the atoms gives rise to a 3-d. By noting the number of bonding and nonbonding pair, we can predict: electron pairs whether they are bonding or nonbonding, repel structure. bond angles. each other. The vsepr model: the valence-shell-electron-repulsion-repulsion model states that: the best arrangement of a given number of electron domains is the one that minimizes the repulsions among them. An electron domain is any electron pair. Draw the lewis structure of the molecule and count the number of electron domains around the central atom. Arrange the bonded atoms to determine the molecular geometry. Next, we determine the ideal structure of the molecule. We ignore lone pairs in molecular geometry. Describe the molecular geometry in terms of the arrangement of: effect of nonbonding electrons and multiple bonds on bond angles. We can refine the vsepr model to explain slight distortions from the bonded atoms. ideal geometries.

Related Questions

Predict the molecular shape of using VSEPR theory.

Draw for yourself the best Lewis structure.
Count the number of electron groups (bond pairs and lone pairs, with multiple counting as one effective electron group) around the central atom, Answer

To establish the electron-group arrangement, Answer. From the electron-group arrangement, you can determine the hybridization of the central atom to be Answer

The electron-group arrangement is not (necessarily) the same as the molecular shape, which is named on the basis of the arrangement of atoms. The molecular shape is Answer
The ideal bond angles around the central atom are Answer. By analyzing repulsive forces between electron pairs (both lone pairs and bond pairs) and realizing that only bond angles subtended by atoms (not lone pairs) can actually be observed, you can predict if any deviations will occur; the experimental bond angles around the central atom will be Answer the ideal bond angles.
Taking the vector sum of bond dipoles, you can evaluate the net dipole moment and predict that the molecule will be Answer