Zirconium

From Citizendium, the Citizens' Compendium
Jump to: navigation, search
This article is developing and not approved.
Main Article
Talk
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
Properties [?]
 
This editable Main Article is under development and not meant to be cited; by editing it you can help to improve it towards a future approved, citable version. These unapproved articles are subject to a disclaimer.
Zirconium
91.224(2)



  Zr
40
1s22s22p63s23p63d104s2 4p64d25s2
[ ? ] Transition metal:
Properties:
Strong, gray-white, lustrous metal.


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.