valenceˈveɪ ləns
valence (n)
- plural
- valences
English Definitions:
valence, valency (noun)
(biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
valence, valency (noun)
(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
Valence
In chemistry, valence, also known as valency or valence number, is the number of valence bonds a given atom has formed, or can form, with one or more other atoms. For most elements the number of bonds can vary. The IUPAC definition limits valence to the maximum number of univalent atoms that may combine with the atom, that is the maximum number of valence bonds that is possible for the given element. The valence of an element depends on the number of valence electrons that may be involved in the forming of valence bonds. A univalent atom, ion or group has a valence of one and thus can form one covalent bond. A divalent molecular entity has a valence of two and can form two sigma bonds to two different atoms or one sigma bond plus one pi bond to a single atom. Alkyl groups and hydroxyl ions are univalent examples; oxo ligands are divalent. Over the last century, the concept of valence evolved into a range of approaches for describing the chemical bond, including Lewis structures, valence bond theory, molecular orbitals, valence shell electron pair repulsion theory and all the advanced methods of quantum chemistry.
Citation
Use the citation below to add this dictionary page to your bibliography:
Style:MLAChicagoAPA
"valence." Kamus.net. STANDS4 LLC, 2024. Web. 18 Apr. 2024. <https://www.kamus.net/english/valence>.
Discuss this bahasa indonesia valence translation with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In