VSEPR and Molecular Geometry

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 molecular geometry is associated with a molecule that has 4 bonding pairs and no lone pairs?

Back

Tetrahedral.

Front

What is the molecular shape of water (H₂O)?

Back

Bent.

Front

Which molecule has a trigonal planar geometry?

Back

BF₃ (Boron Trifluoride).

Front

What is the molecular geometry of carbon dioxide (CO₂)?

Back

Linear.

Front

How does the presence of lone pairs affect molecular geometry?

Back

Lone pairs repel more strongly than bonding pairs, which can alter the angles between bonds and the overall shape of the molecule.

Front

What is the bond angle in a tetrahedral molecule?

Back

Approximately 109.5 degrees.

Front

What is the difference between molecular geometry and electron geometry?

Back

Molecular geometry refers to the arrangement of only the bonded atoms, while electron geometry considers all electron groups, including lone pairs.

Front

What is the molecular shape of ammonia (NH₃)?

Back

Trigonal pyramidal.

Front

Which molecule has a square planar geometry?

Back

XeF₄ (Xenon Tetrafluoride).