ChemicalElements.com: Magnesium - Basic information, atomic structure, and table of isotopes. It's Elemental: Magnesium - Basic physical and historical information. USGS Minerals Information: Magnesium - Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). EnvironmentalChemistry.com: Magnesium - Atomic structure, chemical and physical properties, and table of nuclides. Lenntech: Magnesium - Physical data, chemical properties, health and environmental effects. Wikipedia: Magnesium - Properties of the element, including its history, applications, and characteristics. Radiochemistry of Magnesium - Full text of the monograph by A. W. Fairhall (Dept. of Chemistry, University of Washington, Seattle, Washington).