Slide 1 of 28 © Copyright Pearson Prentice Hall Bonding Theories > 8.3 Molecular Orbitals A...

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Bonding Theories >8.3 Molecular Orbitals

A Sigma Bond

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Bonding Theories >8.3 Molecular Orbitals

Pi Bonds

In a pi bond (symbolized by the Greek letter ), the bonding electrons are most likely to be found in sausage-shaped regions above and below the bond axis of the bonded atoms.

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Bonding Theories >8.3 Molecular Orbitals

Pi-bonding Orbital

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Bonding Theories >

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8.3 VSEPR Theory

VSEPR Theory

How does VSEPR theory help predict the shapes of molecules?

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Bonding Theories >

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8.3 Hybrid Orbitals

Hybrid Orbitals

In what ways is orbital hybridization useful in describing molecules?

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Bonding Theories > Hybrid Orbitals

Orbital hybridization provides information about both molecular bonding and molecular shape.

In hybridization, several atomic orbitals mix to form the same total number of equivalent hybrid orbitals.

8.3

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Bonding Theories >8.3 Hybrid Orbitals

Hybridization Involving Single Bonds

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Bonding Theories >8.3 Hybrid Orbitals

Hybridization Involving Double Bonds

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Bonding Theories >8.3 Hybrid Orbitals

Hybridization Involving Triple Bonds

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Bonding Theories > Hybrid Orbitals

Simulation 7 Compare sp, sp2, and sp3 hybrid orbitals.

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Section Quiz

-or-Continue to: Launch:

Assess students’ understanding of the concepts in Section 8.3.

8.3 Section Quiz.

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8.3 Section Quiz.

1. A molecular orbital belongs to a

a. specific atom.

b. molecule as a whole.

c. specific pair of atoms.

d. central atom.

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8.3 Section Quiz.

2. VSEPR theory enables prediction of 3-dimensional molecular shape because the valence electron pairs

a. are attracted to each other.

b. form molecules with only four possible shapes.

c. stay as far apart as possible.

d. always form tetrahedral shapes.

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3. Orbital hybridization provides information about

a. both molecular bonding and molecular shape.

b. both molecular bonding and bond energy.

c. neither molecular bonding nor molecular shape.

d. neither molecular bonding nor bond energy.

8.3 Section Quiz.

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