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Wikipedia: Copper - http://en.wikipedia.org/wiki/Copper
Properties of the element, including its history, applications, and characteristics. |
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WebElements: Copper - http://www.webelements.com/webelements/elements/text/Cu/key.html
Extensive information on history, uses, occurrence, compounds, and properties of the element. |
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USGS Minerals Information: Copper - http://minerals.usgs.gov/minerals/pubs/commodity/copper/
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format). |
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LANL: Copper - http://periodic.lanl.gov/elements/29.html
History, properties, sources, and uses. |
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Lenntech: Copper - http://www.lenntech.com/Periodic-chart-elements/Cu-en.htm
Physical data, chemical properties, health and environmental effects. |
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ChemicalElements.com: Copper - http://www.chemicalelements.com/elements/cu.html
Basic information, atomic structure, and table of isotopes. |
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It's Elemental: Copper - http://education.jlab.org/itselemental/ele029.html
Basic physical and historical information. |
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EnvironmentalChemistry.com: Copper - http://environmentalchemistry.com/yogi/periodic/Cu.html
Atomic structure, chemical and physical properties, and table of nuclides. |
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Visual Elements: Copper - http://www.chemsoc.org/viselements/pages/copper.html
Image, general and physical information, source, uses, key isotopes, and ionisation energies. |
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Radiochemistry of Copper - http://library.lanl.gov/cgi-bin/getfile?rc000048.pdf
Full text of the monograph by F. F. Dyer (Oak Ridge National Laboratory, Oak Ridge, Tennessee). |