VSEPR Theory Flashcards
What does VSEPR stand for?
Valence Shell Electron Pair Repulsion
What is the molecular geometry of a molecule with four bonding groups and no lone pairs?
Tetrahedral
True or False: A pyramidal molecular geometry has one lone pair and three bonding groups.
True
How many lone pairs are present in a bent molecular geometry with two bonding groups?
Two lone pairs
Fill in the blank: A molecule with three bonding groups and no lone pairs has a _______ geometry.
Trigonal planar
What is the bond angle for a tetrahedral molecular geometry?
109.5 degrees
How many bonding groups are there in a linear molecular geometry?
Two bonding groups
True or False: The molecular shape of H2O is trigonal planar.
False
What is the molecular shape of CO2?
Linear
Fill in the blank: The bond angle in a bent molecular shape is typically around _______ degrees.
104.5 degrees
How many total electron pairs are around the central atom in a tetrahedral molecule?
Four electron pairs
What is the geometry of a molecule with two bonding groups and one lone pair?
Bent
True or False: A molecule with a trigonal planar geometry has 120-degree bond angles.
True
How many lone pairs are typically found in a molecule with a linear geometry?
Zero lone pairs
Fill in the blank: A molecule with a bent shape typically has _______ lone pairs.
Two or one lone pairs
True or False: Linear geometry can occur with more than two bonding groups.
False
In VSEPR theory, what is the primary factor that determines molecular shape?
The repulsion between electron pairs
How many bonding groups and lone pairs does a molecule with a tetrahedral shape have?
Four bonding groups and zero lone pairs
What shape does a molecule adopt if it has two bonding pairs and two lone pairs?
Bent
