Encyclopedia of Earth
Encyclopedia of Earth: Molybdenum
Information about the metallic element, Molybdenum, atomic number 42. It is unique in having an extremely high melting point. Covers its discovery, its biological importance, its physical and atomic properties, how abundant it is on the...
Encyclopedia of Earth
Encyclopedia of Earth: Lithium
Information about the metallic element, Lithium, atomic number 3. Covers its discovery, its physical and atomic properties, how abundant it is on the Earth, sources, uses, potential substitutes, and permissible exposure limits.
Encyclopedia of Earth
Encyclopedia of Earth: Lead
Information about the heavy metal, Lead, atomic number 82. Gives some interesting historical details about lead's use in the past. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about...
Ducksters
Ducksters: Kids Science: Elements
Kid's learn about the science of chemical elements. Basic forms of matter made from a single type of atom.
Royal Society of Chemistry
Chemical Society: Argon
This site, which is provided for by the Chemical Society, gives a small amount of basic information on argon, including its history and uses.
Science Education Resource Center at Carleton College
Serc: Group and Periodic Properties Lab
Students observe and perform experiments with sodium, potassium, calcium, magnesium, sulfur ,and phosphorus. The discover trends down groups, across periods, and having to do with the pH of metal oxides vs. nonmetal oxides.
Web Elements
Web Elements Periodic Table: Cobalt
An excellent summary of the basic data about cobalt, along its properties and how it is isolated chemically.
Other
Oak Ridge National Labs: Erbium
A summary of the abundances of the isotopes of erbium. A great resource for chemistry students!
Web Elements
Web Elements Periodic Table: Magnesium
An extremely thorough summary of the properties and uses of magnesium. Very easy to follow.
Royal Society of Chemistry
Visual Elements: Berkelium
Nice summary of the basic facts known about berkelium. Easy to follow.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Mendelevium
A summary of the basic data on mendelevium, its isotopes and basic properties.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Rhenium
Excellent summary of the basics on rhenium.
Florida-Spectrum Environmental Services
Florida Spectrum: Chemical Fact Sheet: Iridium
A summary of the basic properties and uses of iridium, as well as a few random facts about it.
Khan Academy
Khan Academy: Practice Writing Electron Configurations
Choose the element that matches the electron configuration.
University of Illinois
University of Illinois: From Alchemy to Chemistry: Dmitri Ivanovich Mendeleev
This resource provides information on the periodic table constructed by Dmitri Mendeleev.
Science Struck
Science Struck: The Internet's Scientific and Technical References
Discusses how to find scientific and technical reference materials online, e.g., the periodic table and formulas, and some advantages of online resources over print.