Iridium
Links
Radiochemistry of Iridium
http://lib-www.lanl.gov/cgi-bin/getfile?rc000027.pdf
Full text of the monograph by G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). [PDF]
ChemicalElements.com: Iridium
http://www.chemicalelements.com/elements/ir.html
Basic information, atomic structure, and table of isotopes.
It's Elemental: Iridium
http://education.jlab.org/itselemental/ele077.html
Basic physical and historical information.
Visual Elements: Iridium
http://www.chemsoc.org/viselements/pages/iridium.html
Image, general and physical information, source, uses, key isotopes, and ionisation energies.
Wikipedia: Iridium
http://www.wikipedia.org/wiki/Iridium
Properties of the element, including its history, applications, and charateristics.
EnvironmentalChemistry.com: Iridium
http://environmentalchemistry.com/yogi/periodic/Ir.html
Atomic structure, chemical and physical properties, and table of nuclides.
WebElements: Iridium
http://www.webelements.com/webelements/elements/text/Ir/key.html
Extensive information on history, uses, occurrence, compounds, and properties.
Lenntech: Iridium
http://www.lenntech.com/Periodic-chart-elements/Ir-en.htm
Physical data, chemical properties, health and environmental effects.