Chem Molecular Geometry with VSEPR

Front

What is the 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 bond angle in a trigonal planar molecule?

Back

120°

Front

What type of bond is formed between two nonmetals?

Back

Covalent bond.

Front

What is the shape of a molecule with four bonding pairs and no lone pairs?

Back

Tetrahedral.

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

What is the bond angle in a tetrahedral molecule?

Back

109.5°

Front

What is the molecular shape of a molecule with two bonding pairs and two lone pairs?

Back

Bent.

Front

What is the most common molecular shape for molecules with three bonding pairs and no lone pairs?

Back

Trigonal planar.

Front

What is the bond angle in a linear molecule?

Back

180°.

Front

What is the effect of lone pairs on bond angles?

Back

Lone pairs repel more strongly than bonding pairs, which can reduce bond angles.