5.111SC | Fall 2014 | Undergraduate

Principles of Chemical Science

Unit II: Chemical Bonding & Structure

Lecture 11: Lewis Structures: Breakdown of the Octet Rule

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Image excerpted from Lecture 11 Notes 

  1. Breakdown of the Octet Rule
    1. Odd Number of Valence Electrons
    2. Octet Deficient Molecules
    3. Valence Shell Expansion

Lecture Video

Radicals, expanded octets, and more, in this lecture about Lewis structures.

Lecture Notes

Notes for Lecture 11 (PDF)

Clicker Questions

Lecture 11 Clicker Questions (PDF)

Textbook Reading

Radicals and Biradicals Section 2.9 Section 2.9
Expanded Valence Shells Section 2.10 Section 2.10
The Unusual Structures of Some Group 13 / III Compounds Section 2.11 Section 2.11
Correcting the Covalent Model: Electronegativity Section 2.12 Section 2.12

Problems and Solutions

Problems for Lecture 11 (PDF)

Solutions for Lecture 11 (PDF)

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Course Info

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Fall 2014
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