Find answers to common questions about chemical bonds. Recognize molecular orbital theory and know how to draw a Lewis structure.

At this site from the Massachusetts Institute of Technology, you can read about the inventor of "Heavy Water," Gilbert Newton Lewis, who is "one of the most influential and admired scientists of the twentieth century."

This lesson will demonstrate how to draw a Lewis dot diagram for a molecule which has a double bond. It is 2 of 2 in the series titled "Lewis Dot Diagrams of Molecules: Double Bonds."

This lesson will demonstrate how to draw a Lewis dot diagram for a molecule which has a triple bond. It is 2 of 2 in the series titled "Lewis Dot Diagrams of Molecules: Triple Bonds."

This section from "An Introduction to Chemistry" describes how to draw resonance structures. A few examples are given. Also find links to 3-D molecular models of the examples.

This power point covers the molecular structure chapter from "An Introduction to Chemistry". It reviews the main ideas and shows many examples of covalent bonding from valence electrons. Also includes detailed steps to drawing lewis dot...

This lesson focuses on chemical compounds including Ionic and Covalent Bonds, Valences, Lewis Structures, Binary Covalent Compounds, Radicals or Polyatomic Ions, and much more. It also includes a compound worksheet in which the students...

For practice drawing resonance structures, visit this page. It contains four practice problems along with the answers.

This audio book, narrated by author Mark Bishop, describes how to draw resonance structures. Contains a few examples to help understand the steps. Also find links to tutorials and animations about other chemistry topics.

This PowerPoint presentation features 33 slides that explain chemical bonding and molecular shape.

This audio book, narrated by Mark Bishop, describes the formation of covalent bonds. Lewis dot structures help highlight the valence electrons used to determine which bonds form. Also find links to animations and tutorials about other...

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will calculate the wavelength, frequency, and energy of light using Planck's constant and the speed of light. They will...

[Free Registration/Login may be required to access all resource tools.] In the following online tutorail students will learn how to express the arrangement of electrons in atoms through electron configurations and Lewis valence electron...

[Free Registration/Login may be required to access all resource tools.] In this interactive learning module, students will learn a technique to predict molecular geometry based on a molecule's Lewis electron dot structure.

[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will sse the Periodic Table to identify and explain the properties of chemical families, including alkali metals, alkaline...

This lesson will demonstrate how to use molecular shape to determine if a molecule is polar or nonpolar. It is 2 of 2 in the series titled "Polarity of Molecular Compounds."

Given descriptions, diagrams, scenarios, or chemical symbols, students will model ionic bonds using electron dot formulas.

A slide presentation with several slides dedicated to the topic of formal charges. Formal charges are explained, and examples are given. A practice example is provided.

In this interactive activity from ChemThink, students will learn about covalent molecules and how the VSEPR theory predicts the shapes of covalently-bonded molecules.

Students burn a magnesium strip to reinforce the concepts of chemical vs. physical changes, reaction types, conservation of mass, formulas and equations, stoichiometry, Lewis structures, and to explore the concept of oxidation/reduction...

A slideshow with several slides dedicated to electronegativity, the trend which is illustrated in the slide at this link. Others slides explain how the electronegativity can be used to determine bond character.

Notes on covalent bonding, bond length, bond energies, Lewis dot structures, and percent ionic character. Colorful graphics.

This page from the Department of Chemistry at Washington University provides attractive Lewis dot diagrams and three-dimensional models for many of the common polyatomic ions. The images will make your visit worthwhile.

Lists the exceptions to the octet rule and provides a discussion and diagrams explaining each one. Includes clear diagrams illustrating this concept.