Krypton
Links
What Does the Element Krypton Look Like?
http://education.jlab.org/qa/krypton.html
Explanation with photographs.
EnvironmentalChemistry.com: Krypton
http://environmentalchemistry.com/yogi/periodic/Kr.html
Atomic structure, properties, and table of nuclides.
It's Elemental: Krypton
http://education.jlab.org/itselemental/ele036.html
Basic physical and historical information.
Chemical Elements.com: Krypton
http://www.chemicalelements.com/elements/kr.html
Basic information, atomic structure, and table of isotopes.
Especil Gas Inc.: Krypton
http://www.c-f-c.com/specgas_products/krypton.htm
Numeric data, uses, and general information.
Visual Elements: Krypton
http://www.chemsoc.org/viselements/pages/krypton.html
General and physical information, uses, key isotopes, and ionisation energies.
Wikipedia: Krypton
http://www.wikipedia.org/wiki/Krypton
Properties of the element, including its history, applications, and charateristics.
WebElements: Krypton
http://www.webelements.com/webelements/elements/text/Kr/key.html
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Lenntech: Krypton
http://www.lenntech.com/Periodic-chart-elements/Kr-en.htm
Physical data, chemical properties, health and environmental effects.