Krypton: Difference between revisions
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imported>Howard C. Berkowitz No edit summary |
imported>Milton Beychok m (Replaced infobox and some minor edits.) |
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|eltrnCfg=1s<sup>2</sup>2s<sup>2</sup>2p<sup>6</sup>3s<sup>2</sup>3p<sup>6</sup>3d<sup>10</sup>4s<sup>2</sup> | |||
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'''Krypton''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Kr. Its [[atomic number]] (the number of [[proton]]s) is 36. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 83.798 g•mol<sup> −1</sup> and is a [[gas]] in its elemental form. | |||
Krypton is considered to be a member of the "Halogen" class of element. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of −153.22 °[[Celsius (unit)|C]] and a melting point of −157.38 °C. | |||
The isotope <sup>85</sup>Kr is emitted by the process of producing [[plutonium]], and air sampling for it, as well as for <sup>133</sup>[[Xenon]], is used in [[Materials MASINT]] and [[national technical means of verification]] as a way to remotely monitor such facilities. It is also released by atmospheric nuclear explosions. | The isotope <sup>85</sup>Kr is emitted by the process of producing [[plutonium]], and air sampling for it, as well as for <sup>133</sup>[[Xenon]], is used in [[Materials MASINT]] and [[national technical means of verification]] as a way to remotely monitor such facilities. It is also released by atmospheric nuclear explosions. | ||
Revision as of 22:25, 20 April 2011
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Krypton is a chemical element, having the chemical symbol Kr. Its atomic number (the number of protons) is 36. It has a standard atomic weight of 83.798 g•mol −1 and is a gas in its elemental form.
Krypton is considered to be a member of the "Halogen" class of element. At a pressure of 101.325 kPa, it has a boiling point of −153.22 °C and a melting point of −157.38 °C.
The isotope 85Kr is emitted by the process of producing plutonium, and air sampling for it, as well as for 133Xenon, is used in Materials MASINT and national technical means of verification as a way to remotely monitor such facilities. It is also released by atmospheric nuclear explosions.