Nickel
Links
Radiochemistry of Nickel
http://lib-www.lanl.gov/cgi-bin/getfile?rc000008.pdf
Full text of the monograph by L. J. Kirby (Hanford Atomic Products Operation, Richland, Washington). [PDF]
It's Elemental: Nickel
http://education.jlab.org/itselemental/ele028.html
Basic physical and historical information.
ChemicalElements.com: Nickel
http://www.chemicalelements.com/elements/ni.html
Basic information, atomic structure, and isotopes.
USGS Minerals Information: Nickel
http://minerals.usgs.gov/minerals/pubs/commodity/nickel/
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Visual Elements: Nickel
http://www.chemsoc.org/viselements/pages/nickel.html
Image, general and physical information, source, uses, key isotopes, and ionisation energies.
EnvironmentalChemistry.com: Nickel
http://environmentalchemistry.com/yogi/periodic/Ni.html
Atomic structure, chemical and physical properties, and table of nuclides.
WebElements: Nickel
http://www.webelements.com/webelements/elements/text/Ni/key.html
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Wikipedia: Nickel
http://www.wikipedia.org/wiki/Nickel
Properties of the element, including its history, applications, and charateristics.
Lenntech: Nickel
http://www.lenntech.com/Periodic-chart-elements/Ni-en.htm
Physical data, chemical properties, health and environmental effects.