Shodor Education Foundation
Shodor: Background Reading for Ionization Energy
A very complete lesson on ionization energy, including tables and charts to illustrate the ideas presented in the text.
Frostburg State University
General Chemistry Online: Molecules and Compounds
A complete lesson on compounds, from introductory material in the beginning to a practice exam at the end. This lesson covers bonding, ionic compounds, molecular compounds, naming compounds, structural formulas, polyatomic ions, and much...
NASA
Nasa: Positive Ions History
As the title suggests, this page from NASA goes over the history of man's study of positive ions. How did we come to know what we now know about cations?
University of Southern California
Atomic Bonds
This slide show on atomic bonds contains several slides on electron affinity. Other topics include covalent, Sigma and Pi bonds, and atomic bonding in solids.
Ohio State University
Ohio State University: Electron Affinity
This page describes electron affinity and the periodic trends of the elements according to their positions on the periodic table.
Quia
Quia: Common Type Ii Cations
This page links to a number of Java games that are designed to make learning the names, symbols and charges of the various cations fun.
Quia
Quia: Common Monotomic Cations and Anions
This page links to a number of fun Java games, designed to help students learn the names and symbols of various ions. Games include matching, concentration and word search.
School of Biological and Chemical Sciences, Queen Mary University of London
Queen Mary University: Glossary
This Queen Mary University site features a glossary of chemical terms, including London forces.
Frostburg State University
Frostburg State Chemistry Online: Classifying Compounds Quiz
A short 6-question online quiz to test your knowledge of compounds. Explains the correct answers after the students answers have been submitted.
Davidson College
Davidson College: Plot of First Ionization Energy and Atomic Number
Here you will find a group of images and graphs which plot covalent radii, first ionization energy, and electron affinity vs. atomic number.