Share on Facebook Share on Twitter Email
Answers.com

divalent

 
Dictionary: di·va·lent   (dī-vā'lənt) pronunciation
adj.
Having a valence of 2.


Search unanswered questions...
Enter a question here...
Search: All sources Community Q&A Reference topics
Medical Dictionary: di·va·lent
Top
(dī-vā'lənt)
adj.

Bivalent.

di·va'lence or di·va'len·cy n.
Veterinary Dictionary: divalent
Top

1. bivalent.
2. carrying an electronic charge of two units.

WordNet: divalent
Top
Note: click on a word meaning below to see its connections and related words.

The adjective has one meaning:

Meaning #1: (chemistry) having a valence of two or having two valences
  Synonym: bivalent
  Pertains to noun: valence (meaning #2)


Wikipedia: Divalent
Top

In chemistry, divalent anions are atoms or radicals with 2 additional electrons when compared to their elemental state (that is, with 2 more electrons than protons); for instance, S2- is the sulfide anion. Conversely, a cation is missing some electrons as compared with the neutral atom. Example: iron(II) or Fe2+ is the divalent cationic form of iron. The terminology arises because in solutions or arc discharges, cations are attracted to the cathode and anions to the anode.

Divalent cations are present in abundance in hard water; for example, [[Ca2+]] and [[Mg2+]]. These ionic minerals in solution are what contribute to the properties of water which cause it to be hard, such as the formation of scale.

See also

[[pt:Ânions divalent


 
 

 

Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Divalent" Read more