VSEPR Theory

Front

What is VSEPR Theory?

Back

VSEPR Theory (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 determines the molecular shape according to VSEPR Theory?

Back

The molecular shape is determined by the number of bonding pairs and lone pairs of electrons around the central atom, which repel each other and arrange themselves to minimize repulsion.

Front

What is the electron geometry of a molecule with 4 bonding pairs and no lone pairs?

Back

The electron geometry is tetrahedral.

Front

What is the molecular geometry of a molecule with 3 bonding pairs and 1 lone pair?

Back

The molecular geometry is trigonal pyramidal.

Front

What is the bond angle in a linear molecular shape?

Back

The bond angle in a linear molecular shape is 180 degrees.

Front

How do lone pairs affect bond angles in molecular geometry?

Back

Lone pairs occupy more space than bonding pairs, which can compress the bond angles between bonding pairs.

Front

What is the molecular geometry of a molecule with 2 bonding pairs and 2 lone pairs?

Back

The molecular geometry is bent.

Front

What is the significance of the term 'polar molecule'?

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A polar molecule has a net dipole moment due to the presence of polar bonds and an asymmetrical shape, leading to an uneven distribution of electron density.

Front

What is the molecular geometry of SF6?

Back

The molecular geometry of SF6 is octahedral.

Front

What is the electron geometry and molecular geometry of a molecule with 5 bonding pairs and no lone pairs?

Back

Electron geometry: trigonal bipyramidal; Molecular geometry: trigonal bipyramidal.