Zirconium: Difference between revisions
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imported>Howard C. Berkowitz mNo edit summary |
imported>Milton Beychok m (Replaced infobox and revised lede somewhat.) |
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{{Elem_Infobox | |||
|elName=Zirconium | |||
|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> | |||
4p<sup>6</sup>4d<sup>2</sup>5s<sup>2</sup> | |||
|no1= | |||
|no2= | |||
|no3= | |||
|no4= | |||
|properties=Strong, gray-white, lustrous metal. | |||
|compounds= | |||
|uses= | |||
|hazard= | |||
}} | |||
'''Zirconium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Zr. Its [[atomic number]] (the number of [[proton]]s) is 40. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 91.224 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | |||
Zirconium is considered to be a member of the "Transition metal" class of element. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 4,409 °[[Celsius (unit)|C]] and a melting point of 1,855 °C. | |||
Civilian applications include cladding of [[nuclear fuel]] elements for nuclear reactors cores. [[Cubic zirconia]] is a form of high-quality synthetic gemstone. | Civilian applications include cladding of [[nuclear fuel]] elements for nuclear reactors cores. [[Cubic zirconia]] is a form of high-quality synthetic gemstone. | ||
Zirconium cases are used on military munitions, especially [[cluster submunition]]s, where an incendiary effect is desired. | Zirconium cases are used on military munitions, especially [[cluster submunition]]s, where an incendiary effect is desired. | ||
Revision as of 16:14, 21 April 2011
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Zirconium is a chemical element, having the chemical symbol Zr. Its atomic number (the number of protons) is 40. It has a standard atomic weight of 91.224 g•mol −1 and is a solid in its elemental form.
Zirconium is considered to be a member of the "Transition metal" class of element. At a pressure of 101.325 kPa, it has a boiling point of 4,409 °C and a melting point of 1,855 °C.
Civilian applications include cladding of nuclear fuel elements for nuclear reactors cores. Cubic zirconia is a form of high-quality synthetic gemstone.
Zirconium cases are used on military munitions, especially cluster submunitions, where an incendiary effect is desired.