VSEPR Theory Flashcard

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 is the molecular geometry of a molecule with two bonding pairs and no lone pairs of electrons?

Back

Linear.

Front

What is the electron dot structure for a molecule with a linear molecular geometry?

Back

A straight line with the atoms at each end and the valence electrons distributed around each atom.

Front

What is the molecular geometry of a molecule with three bonding pairs and one lone pair of electrons?

Back

Trigonal pyramidal.

Front

What is the electron dot structure for a molecule with a trigonal planar molecular geometry?

Back

Central atom with three bonding pairs of electrons.

Front

What is the molecular geometry of a molecule with two bonding pairs and one lone pair of electrons?

Back

Bent.

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 bonding pairs and change the overall shape of the molecule.

Front

What is the molecular geometry of a molecule with four bonding pairs and no lone pairs of electrons?

Back

Tetrahedral.

Front

What is the bond angle in a trigonal planar molecular geometry?

Back

120 degrees.

Front

What is the bond angle in a tetrahedral molecular geometry?

Back

109.5 degrees.