Valence

Definition of Valence from the PharmacyDictionary.in

Valence

1. Typically the number of electrons in an atom’s outer orbit, which indicates the atom’s ability to bond with other atoms or groups of atoms; the combining power of an element or a radical 2. A term indicating the number of diseases or conditions that a vaccine can prevent, or that an antivenin or an antitoxin can prevent and treat 3. The combining power of an antibody for an antigen

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