VSEPR Review

VSEPR theory is used to predict

• the number of unshared pairs of electrons in a Lewis structure.

• the number of multiple bonds in a Lewis structure.

• the three-dimensional geometry of a molecule.

• the three-dimensional crystal lattice structure of ionic compounds.

 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

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

• Bipyramidal
• Bent
• Trigonal Planar
• Tetrahedral

Which molecule would have this molecular geometry?

• BF₃
• CH₄
• PCl₅
• CO₂

What molecule could this be? 

• BF₃
• CH₄
• H₂O
• CO₂

Tags

NGSS.HS-PS1-3

Who could this molecule be?

• CH₄
• CO₂
• PCl₅
• BF₃

Tags

NGSS.HS-PS1-3

Who could this be? 

• CO₂
• NH₃
• H₂S
• CH₄

Who could this be?

• H₂O
• NH₃
• CO₂
• CH₄

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What molecular geometry would PH₃ have?

• Trigonal Pyramidal

• Trigonal Bipyramidal

• Bent

• Linear

How many lone pairs of electrons are on the P atom in PF₃?

• 1
• 2
• 3
• 0