Valence

Valence is a somewhat outdated concept in chemistry. It is a number that tries to predict with how many neighboring atoms a certain atom can form a bond. For redox reactions it has been superseded by the concept of oxidation number.

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Valence is the name of several places in France:

• Valence[?], a commune in the Charente département
• Valence, préfecture (capital) of the Drôme département