VSEPR Flashcard

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 the molecular geometry of a molecule with 2 bonding pairs and 1 lone pair?

Back

The molecular geometry is bent or angular.

Front

What is the bond angle in a tetrahedral molecule?

Back

The bond angle in a tetrahedral molecule is approximately 109.5°.

Front

How does a lone pair affect molecular geometry?

Back

A lone pair repels more strongly than bonding pairs, which can alter the expected bond angles and overall geometry of the molecule.

Front

What is the electron geometry of a molecule with 4 bonding pairs?

Back

The electron geometry is tetrahedral.

Front

What type of bond is formed between two nonmetals?

Back

A covalent bond is formed between two nonmetals.

Front

What is the effect of increasing the number of covalent bonds between two atoms?

Back

As the number of covalent bonds increases, the distance between the atoms decreases and the strength of the bond increases.

Front

What is the bond angle for a trigonal planar molecule?

Back

The bond angle for a trigonal planar molecule is 120°.

Front

What conditions lead to high Coulombic attraction?

Back

High charge and shorter distance between charged particles lead to high Coulombic attraction.

Front

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

Back

The molecular geometry is trigonal pyramidal.