See also:

• Science: Chemistry: Elements: Noble Gases  (2)

• ChemGlobe: Krypton - Electronic, thermal, and steric data along with an isotope table.
• Chemical Elements.com: Krypton - Basic information, atomic structure, and table of isotopes.
• EnvironmentalChemistry.com: Krypton - Atomic structure, properties, and table of nuclides.
• Especiál Gas Inc.: Krypton - Numeric data, uses, and general information.
• It's Elemental: Krypton - Basic physical and historical information.
• LANL: Krypton - History, sources, isotopes, and uses.
• Lenntech: Krypton - Physical data, chemical properties, health and environmental effects.
• Visual Elements: Krypton - General and physical information, uses, key isotopes, and ionisation energies.
• What Does the Element Krypton Look Like? - Explanation with photographs.
• Wikipedia: Krypton - Properties of the element, including its history, applications, and characteristics.