Curated OER
History of the Atom
This is a tremendous overview of the tiny atom. Journey through the history of human understanding of this basic building block of matter. Examine each of the sub-atomic particles in detail: neutrons, protons, electrons, quarks. Peruse...
Curated OER
Ionic and Covalent Bonding - Smart Board Notes
On this note-taking sheeet, chemistry learners list elements as metals or non-metals. They differentiate between ionic and covalent bonds. They draw Lewis structures for both types of bonds. This would be a terrific teaching tool when...
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Selenium
Nice detailed synopsis of selenium, its properties and uses.
National Institutes of Health
National Institutes of Health: Dietary Supplement Fact Sheet: Selenium
Information on the dietary and nutritional significance of selenium from an authoritative source.
CK-12 Foundation
Ck 12: Chemistry: Nonmetals
[Free Registration/Login may be required to access all resource tools.] Describes the properties of non-metals and uses of non-metals
Amethyst Galleries
Native Elements Class: Graphite
Description of graphite and its basic properties. Also a comparison to diamond and how they differ.