Krypton
Properties
Electron Configuration:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
Abbreviated Electron Configuration: [AR] 4s2 3d10 4p6
Group 8A/Noble Gases
Period #4
Nonmetal
Melting Point: -157 °C
Boiling Point: -153 °C
Density: 3.73 10-3 g.cm-3 at 20°C
Vanderwaals radius: 0.197 nm
Poor Conductor of Heat
Poor Conductor of Electricity
History
Discovered by William Ramsay and Morris Travers
Discovered on May 30, 1898
Discovered in London, England
Human Interaction
Krypton is mainly found in Earth's atmosphere
Traces of krypton are found in various metals
Krypton is sometimes used in photographic flashes and fluorescent lightbulbs
Krypton is not found in high concentrations in plants or animals
