Chromium: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Milton Beychok
m (Replace infobox and added some info to it)
imported>Milton Beychok
m (Fixed typo)
Line 7: Line 7:
|no3=
|no3=
|no4=
|no4=
|properties=Steel-ray, lustrous, hard metal. Malleable and corrosion resistant. Multi-valent.
|properties=Steel-gray, lustrous, hard metal. Malleable and corrosion resistant. Multi-valent.
|compounds=
|compounds=
|uses=
|uses=

Revision as of 16:44, 19 April 2011

This article is a stub and thus not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
Properties [?]
 
This editable Main Article is under development and subject to a disclaimer.
Chromium
51.9961(6)



  Cr
24
1s22s22p63s23p63d54s1
[ ? ] Transition metal:
Properties:
Steel-gray, lustrous, hard metal. Malleable and corrosion resistant. Multi-valent.
Hazard:
Hexavalent chromium is toxic.


Chromium is a chemical element, having the chemical symbol Cr. Its atomic number (the number of protons) is 24. It has a standard atomic weight of 51.9961 g•mol −1 and is a solid in its elemental form.

Chromium 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 2,671 °C, and a melting point of 1,907 °C.