CK-12 Foundation
Ck 12: Trends in the Periodic Table
[Free Registration/Login may be required to access all resource tools.] Students investigate specific properties that can be predicted by an element's position on the periodic table. Additionally, they will look at the formation of ions,...
Simon Fraser University
Chem1 Virtual Textbook: Periodic Trends in Ion Formation
Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses electron affinity and ionization energy in relation to ion formation. Charts and graphs are included as well.