3.5 - Molecular Shape

VSEPR theory is to

• determine the number of bonding and lone pairs electrons
• determine the number of ECC
• determine the shape and geometry of molecule
• determine the lewis structure of molecule

What is the VSEPR theory used to predict?

• Bond Strength
• Polarity
• Molecular Shape
• Electronegativity

Which of the following shapes has unshared pairs of electrons on the central atom? 

• Bipyramidal
• Bent
• Trigonal Planar
• Tetrahedral

Which molecule would have this shape?

• BF₃
• CH₄
• PCl₅
• CO₂

Which of the following molecular shapes would have a bond angle of 180 Degrees?

• Bent
• Trigonal Planar
• Tetrahedral
• Linear

What molecular shape is the structure shown here? (BCl₃)

• linear
• trigonal planar
• tetrahedral
• trigonal pyramidal

What molecular shape is the structure shown here? (H₂O)

• tetrahedral
• trigonal planar
• bent
• trigonal pyramidal

What molecular shape is the structure shown here? (NH₄⁺)

• linear
• trigonal planar
• tetrahedral
• trigonal pyramidal

 A lone pair is defined as

• A pair of bonding electrons
• One non-bonding electron
• A pair of non-bonding electrons
• A pair of electrons on the central atom

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons
• Inner shell electrons
• Mobile Electrons
• Electrons closest to the nucleus