Lewis, VSEPR & Bond Polarity

 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

What is the VSEPR theory used to predict?

• Bond Strength
• Polarity
• Molecular Shape
• Electronegativity

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

• Bipyramidal
• Bent
• Trigonal Planar
• Tetrahedral

What molecule could this be? 

• H₂O
• CCl₄
• PCl₅
• NaCl

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Who could this molecule be?

• CH₄
• CO₂
• PCl₅
• BF₃

Tags

NGSS.MS-PS1-1

Who could this be? 

• CO₂
• NH₃
• H₂S
• CH₄

Tags

NGSS.MS-PS1-1

Who could this be?

• H₂O
• NH₃
• CO₂
• CH₄

Tags

NGSS.MS-PS1-1

What molecular geometry would PH₃ have?

• Trigonal Pyramidal

• Trigonal Bipyramidal

• Bent

• Linear

Tags

NGSS.MS-PS1-1

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

• 1
• 2
• 3
• 0

Tags

NGSS.HS-PS1-1

Consider the molecule below.  Determine the molecular geometry at each of the 2 labeled carbons.

• C1 = tetrahedral, C2 = linear
• C1 = trigonal planar, C2 = bent
• C1 = bent, C2 = trigonal planar
• C1 = trigonal planar, C2 = tetrahedral