Other
Organic Chemistry: Lewis/kekule Structures
This slide presentation contains a few slides that will be useful for students learning to write Lewis structures. A discussion of multiple bonds is included, and clear examples are shown.
University of California
Organic Chemistry Page: A Brief Tutorial on Drawing Lewis Dot Structures
An excellent lesson on writing Lewis structures. Examples shown include ammonium ion, carbon dioxide and the carbonate ion.
Other
Chemical Bonds: Formal Charges
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.
Michael Blaber, PhD
Fsu: Basic Concepts of Chemical Bonding: Exceptions to the Octet Rule
Lists the exceptions to the octet rule and provides a discussion and diagrams explaining each one. Includes clear diagrams illustrating this concept.
Other
Organic Chemistry: Octet Rule
This slide presentation contains a description of the octet rule, as well as many related topics.
Chem Tutor
Chem Tutor: Chemistry: Lewis Structures of the Elements
This colorful page goes over the proper techniques for writing Lewis structures for elements. This is a great place to begin learning how to write Lewis structures. When you are ready for a more advanced lesson, follow the link to learn...
Other
Chemical Bonds: Writing Lewis Structures
This slide show explains the rules for writing Lewis structures and then demonstrates an example. It then provides a practice example for the student to try.
University of Michigan
University of Michigan: Instrument Encyclopedia: Bassoon
This essay provides general and historical information on the woodwind instrument, the bassoon, which is a "larger and lower-voiced version of the oboe." Included are references to famous musicians who worked with the bassoon and several...
Other
Bob's Byway: Glossary of Poetic Terms
Calling itself "unique," Bob's is easy to use, with cross-links throughout, phonetic pronunciation guides when necessary, and many examples and quotations. Click on the letter and scroll for the word.