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Wikipedia: Lead -
Properties of the element, including its history, applications, and characteristics.
http://en.wikipedia.org/wiki/Lead EnvironmentalChemistry.com: Lead -
Atomic structure, chemical and physical properties, and table of nuclides.
http://environmentalchemistry.com/yogi/periodic/Pb.html Visual Elements: Lead -
Image, uses, physical information, and key isotopes.
http://www.chemsoc.org/viselements/pages/lead.html ChemicalElements.com: Lead -
Basic information, atomic structure, and isotopes table.
http://www.chemicalelements.com/elements/pb.html LANL: Lead -
Properties, forms, uses, and handling.
http://periodic.lanl.gov/elements/82.html It's Elemental: Lead -
Basic physical and historical information.
http://education.jlab.org/itselemental/ele082.html Lenntech: Lead -
Physical data, chemical properties, health and environmental effects.
http://www.lenntech.com/Periodic-chart-elements/Pb-en.htm ChemGlobe: Lead -
Electronic, thermal, and steric data along with an isotope table.
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/82.html USGS Minerals Information: Lead -
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
http://minerals.usgs.gov/minerals/pubs/commodity/lead/
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