ChemGlobe: Radium - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/88.html
Electronic, thermal, and steric data along with an isotope table. |
ChemicalElements.com: Radium - http://www.chemicalelements.com/elements/ra.html
Basic information, atomic structure, and isotopes. |
EnvironmentalChemistry.com: Radium - http://environmentalchemistry.com/yogi/periodic/Ra.html
Atomic structure, chemical and physical properties, and table of nuclides. |
It's Elemental: Radium - http://education.jlab.org/itselemental/ele088.html
Basic physical and historical information. |
LANL: Radium - http://periodic.lanl.gov/elements/88.html
History, sources, properties, and uses. |
Lenntech: Radium - http://www.lenntech.com/Periodic-chart-elements/Ra-en.htm
Physical data, chemical properties, health and environmental effects. |
Radiochemistry of Radium - http://library.lanl.gov/cgi-bin/getfile?rc000041.pdf
Full text of the monograph by Murrell L. Salutsky (W.R. Grace and Co., Research Division, Washington Research Center, Clarksville, Maryland) and H. W. Kirby (Mound Laboratory, Miamisburg, Ohio). |
Visual Elements: Radium - http://www.chemsoc.org/viselements/pages/radium.html
Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
WebElements: Radium - http://www.webelements.com/webelements/elements/text/Ra/key.html
Extensive information on history, uses, occurrence, compounds, and properties. |
Wikipedia: Radium - http://en.wikipedia.org/wiki/Radium
Properties of the element, including its history, applications, and characteristics. |