Definition of valence in English:



Linguistics Chemistry
  • 1

    another term for valency
    • ‘Addition reactions of inorganic molecules occur when an atom has more than one valence.’
    • ‘Thus, the most obvious approach would be to use the Gouy-Chapman equation or its generalized formulation for electrolytes with mixed valences, the Grahame equation.’
    • ‘One rather unsuccessful idea which he embarked on quite late in his career was to apply invariant theory to chemical valences.’
    • ‘The difference in the valence of phosphorous and silicon provides the free electrons needed for metal-like behaviour.’
    • ‘These data can only be explained if one assumes that the affective valence of the prime is processed, even though this is not necessary for the task at hand.’
    • ‘In covalent compounds the valence of an atom may be less obvious.’
    • ‘The valence of a unit is closely tied up with its dependence.’
    1. 1.1as modifier Relating to or denoting electrons involved in or available for chemical bond formation.
      ‘molecules with unpaired valence electrons’
      • ‘These superconductors usually contain more oxygen atoms than predicted by valence theory.’
      • ‘The electrons in the highest energy level are called valence electrons.’
      • ‘Oxygen has six valence electrons.’
      • ‘Nonmetals with eight valence electrons are chemically unreactive.’
      • ‘The metalloids have an intermediate number of valence electrons.’


Late Middle English: from late Latin valentia ‘power, competence’, from valere ‘be well or strong’.