VSEPR

Front

What is VSEPR theory?

Back

VSEPR (Valence Shell Electron Pair Repulsion) theory is a model used to predict the geometry of individual molecules based on the repulsion between the electron pairs in the valence shell of the central atom.

Front

What is a lone pair?

Back

A lone pair is a pair of non-bonding electrons located on the central atom of a molecule.

Front

What molecular geometry does CH₄ have?

Back

CH₄ (methane) has a tetrahedral molecular geometry.

Front

What molecular geometry does CO₂ have?

Back

CO₂ (carbon dioxide) has a linear molecular geometry.

Front

What is the molecular shape of BF₃?

Back

BF₃ (boron trifluoride) has a trigonal planar molecular shape.

Front

How does VSEPR theory help in predicting molecular shapes?

Back

VSEPR theory helps predict molecular shapes by considering the repulsion between electron pairs, which determines the arrangement of atoms in a molecule.

Front

What is the significance of bond angles in VSEPR theory?

Back

Bond angles are significant in VSEPR theory as they provide information about the spatial arrangement of atoms in a molecule, which is influenced by the repulsion between electron pairs.

Front

What is the molecular shape of H₂O?

Back

H₂O (water) has a bent molecular shape due to the presence of two lone pairs on the oxygen atom.

Front

What is the effect of lone pairs on molecular geometry?

Back

Lone pairs occupy more space than bonding pairs, which can alter the bond angles and overall shape of the molecule.

Front

What is the molecular geometry of PCl₅?

Back

PCl₅ (phosphorus pentachloride) has a trigonal bipyramidal molecular geometry.