This site is provided by Euro Chlor, representing the chlor-alkali industry in Europe. The site discusses how chlorine is vital for many industrial processes, how it is made, sustainability, regulations, and even the...

This National Institute of Standards and Technology (NIST)) site contains atomic spectroscopic reference data. Information can be accessed through a variety of means, such as an interactive periodic table and dropdown...

This lesson provides an introduction to the occurrence and possible risks of household chemical products. Topics include some basic chemistry (how elements combine to form compounds), how chemicals are classified, and...

It can be tricky to remember the position of lanthanides within the periodic table of elements, but this interactive feature from Annenberg Media's "Interactive" series will keep students in the know about those...

The Los Alamos National Laboratory publishes an annotated periodic table of elements as a resource for K-12 students. This accessible resource was originally created by Robert Husted back in 1992, but has since been...