VSEPR Shapes

What is the VSEPR theory used to predict?

• 2-dimensional Molecular shapes

• Polarity

• 3-dimensional Molecular Shape

• Electronegativity

 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

Identify the "things" attached.

• 4 bonding atoms both purple and red.

• 2 bonding atoms (purple) and 2 bonding atoms (red)

• 2 lone electron pairs (purple) and 2 bonding atoms (red)

• 4 lone electron pairs that are both purple and red.

What VSEPR shape is this

• Linear
• Line
• Tetrahedral
• Bent

What VSEPR structure is this?

• Trigonal Pyrimidal
• Trigonal Planar
• Tetrahedral
• Non-existant

What VSEPR structure is this?

• Trigonal Pyrimidal

• Trigonal Planar

• Tetrahedral

• Bent

Which VSEPR shape is trigonal planar?

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Which VSEPR shape is bent?

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Which VSEPR shape is trigonal pyramidal?

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Why is H₂O bent?

• left over electron pairs
• It has no carbon
• It is not bent, but linear
• Oxygen has 4 valence electrons

Tags

NGSS.HS-PS1-2