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valence shell

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valence electron

 
Use valence shell in a Sentence
–noun Chemistry.
an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.
Origin:
1925–30
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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valence shell  
n.  The outermost shell of an atom consisting of the valence electrons.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: valence electron
Function: noun
: a single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemicalproperties of the atom
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
valence electron  
An electron in one of the outer shells of an atom that can participate in forming chemical bonds with other atoms.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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