Manganese

From Citizendium
Revision as of 16:54, 19 April 2011 by imported>Milton Beychok (Replaced infobox and added some info.)
Jump to navigation Jump to search
This article is a stub and thus not approved.
 Main Article
 Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
Properties [?]
 
https://en.citizendium.org/wiki/index.php?title=Manganese&printable=yes
This editable Main Article is under development and subject to a disclaimer.
Manganese
54.938049(9)



  Mn
25
1s22s22p63s23p63d54s2
[ ? ] Transition metal:
Properties:
Grayish-white. hard, brittle metal.
Hazard:
Manganese dusts and fumes are toxic.


Manganese is a chemical element, having the chemical symbol Mn. Its atomic number (the number of protons) is 25. It has a standard atomic weight of 54.938049 g•mol −1 and is a solid in its elemental form.

Manganese 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 2,061 °C, and a melting point of 1,246 °C.

Retrieved from "https://citizendium.org/wiki/index.php?title=Manganese&oldid=565234"