Definitions for valence electron
va·lence elec·tron

Princeton's WordNetRate this definition:0.0 / 0 votes

1. valence electronnoun

   an electron in the outer shell of an atom which can combine with other atoms to form molecules

WiktionaryRate this definition:0.0 / 0 votes

1. valence electronnoun

   any of the electrons in the outermost shell of an atom; capable of forming bonds with other atoms

WikipediaRate this definition:0.0 / 0 votes

1. Valence electron

   In chemistry and physics, a valence electron is an electron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed. In a single covalent bond, a shared pair forms with both atoms in the bond each contributing one valence electron. The presence of valence electrons can determine the element's chemical properties, such as its valence—whether it may bond with other elements and, if so, how readily and with how many. In this way, a given element's reactivity is highly dependent upon its electronic configuration. For a main-group element, a valence electron can exist only in the outermost electron shell; for a transition metal, a valence electron can also be in an inner shell. An atom with a closed shell of valence electrons (corresponding to a noble gas configuration) tends to be chemically inert. Atoms with one or two valence electrons more than a closed shell are highly reactive due to the relatively low energy to remove the extra valence electrons to form a positive ion. An atom with one or two electrons fewer than a closed shell is reactive due to its tendency either to gain the missing valence electrons and form a negative ion, or else to share valence electrons and form a covalent bond. Similar to a core electron, a valence electron has the ability to absorb or release energy in the form of a photon. An energy gain can trigger the electron to move (jump) to an outer shell; this is known as atomic excitation. Or the electron can even break free from its associated atom's shell; this is ionization to form a positive ion. When an electron loses energy (thereby causing a photon to be emitted), then it can move to an inner shell which is not fully occupied.

ChatGPTRate this definition:0.0 / 0 votes

1. valence electron

   A valence electron is an electron located in the outermost shell of a chemical element's atom. These electrons are involved in the formation of chemical bonds and determine the chemical behavior or reactivity of an atom.

WikidataRate this definition:3.0 / 2 votes

1. Valence electron

   In chemistry, a valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair. The presence of valence electrons can determine the element's chemical properties and whether it may bond with other elements: For a main group element, a valence electron can only be in the outermost electron shell. In a transition metal, a valence electron can also be in an inner shell. An atom with a closed shell of valence electrons tends to be chemically inert. An atom with one or two valence electrons more than a closed shell is highly reactive, because the extra valence electrons are easily removed to form a positive ion. An atom with one or two valence electrons fewer than a closed shell is also highly reactive, because of a tendency either to gain the missing valence electrons, or to share valence electrons. Like an electron in an inner shell, a valence electron has the ability to absorb or release energy in the form of a photon. This gain or loss of energy can trigger an electron to move to a more outer shell or even break free from its associated atom's valence shell; this is known as atomic excitation. When an electron loses energy, then it moves to a more inner shell.

Matched Categories

1. • Electron

How to pronounce valence electron?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say valence electron in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of valence electron in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of valence electron in Pythagorean Numerology is: 1

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=valence electron
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Valence_Electron
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Valence_Electron
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=valence electron