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Wikipedia: Potassium - http://en.wikipedia.org/wiki/Potassium
Properties of the element, including its history, applications, and characteristics. |
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WebElements: Potassium - http://www.webelements.com/webelements/elements/text/K/key.html
Extensive information on history, uses, occurrence, compounds, and properties of the element. |
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LANL: Potassium - http://periodic.lanl.gov/elements/19.html
Sources, uses, properties, and isotopes. |
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ChemicalElements.com: Potassium - http://www.chemicalelements.com/elements/k.html
Basic information, atomic structure, and isotopes. |
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It's Elemental: Potassium - http://education.jlab.org/itselemental/ele019.html
Basic physical and historical information. |
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EnvironmentalChemistry.com: Potassium - http://environmentalchemistry.com/yogi/periodic/K.html
Atomic structure, chemical and physical properties, and table of nuclides. |
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Visual Elements: Potassium - http://www.chemsoc.org/viselements/pages/potassium.html
Image, animation, source, uses, physical information, and key isotopes. |
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ChemGlobe: Potassium - http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/19.html
Electronic, thermal, and steric data along with basic information. |
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Lenntech: Potassium - http://www.lenntech.com/Periodic-chart-elements/K-en.htm
Physical data, chemical properties, and health effects. |
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Radiochemistry of Potassium - http://library.lanl.gov/cgi-bin/getfile?rc000016.pdf
Full text of the monograph by William T. Mullins and G. W. Leddicotte (Oak Ridge National Laboratory, Oak Ridge, Tennessee). |