Other
Web ref.org: Arsenic
Some basic information along with good information on uses and health related facts on arsenic.
Encyclopedia of Earth
Encyclopedia of Earth: Sulfur
Information about the element, Sulfur, atomic number 16. Covers physical and atomic properties, its history, chemistry, sources, uses, how abundant it is on the Earth, environmental and biological factors, and the different forms in...
Other
Environmental Yellow Pages: Elemental Einsteinium
The history, isotopes, and properties of the element Einsteinium are discussed on this site. Also listed is the atomic weight, atomic number, atomic symbol, and electron configuration.
CK-12 Foundation
Ck 12: Electron Arrangement in Atoms
[Free Registration/Login may be required to access all resource tools.] The focus in this learning module will be on the complexity of electron arrangement in atoms.
Other
Web ref.org: Chromium
A short, well written summary of some of the most important information on chromium, including its uses.
Other
Web ref.org: Aluminum
Here you can find a detailed overview of aluminum. Content includes a focus on aluminum's chemical properties, occurrence in nature, uses, and production.
Mocomi & Anibrain Digital Technologies
Mocomi: Molecules
When two or more atoms combine they give rise to a molecule. A molecule can be made up of many atoms of the same element. There are 112 elements known to man, so can you imagine the different permutations and combinations of molecules...