PPT Slide

• Groups of valence electrons around a central atom stay as far  apart from each other as possible to minimize repulsions.

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• An electron group may consist of a single bond, a double bond, a  triple bond, a lone pair, or in some cases even a lone electron.

• The three-dimensional arrangement of these groups of electrons  gives rise to the molecular shape.

Balloon analogy for the mutual repulsion of electron groups.

Concept 10-6. How electron-group repulsions give rise to molecular shapes

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