How is VSEPR theory helpful?

Answer 1

Valence shell electron pair theory is useful in predicting the shapes of molecules. All that is done is to count the number of electron pairs around an atom and then work out the shape as the pairs of electrons repel each other.

2 pairs linear

3 pairs trigonal planar

4 pairs tetrahedral

etc

Answer 2

VSEPR theory helps predict the molecular shape of a molecule based on the arrangement of its atoms and lone pairs. This information is useful for understanding the properties and reactivity of molecules, as well as for predicting their behavior in chemical reactions. Additionally, VSEPR theory can aid in determining the polarity of a molecule, which is important in explaining its interactions with other molecules.