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Valence (Noun)

(biology) a relative capacity to unite or react or interact as with antigens or a biological substrate.

Nouns denoting attributes of people and objects.

The valence of an antibody determines its ability to bind to specific antigens on the surface of pathogens, thereby facilitating an immune response.
The valence electrons of an atom participate in chemical bonding, but biological valence refers specifically to the reactivity of a molecule within the body.
Understanding the valence of enzymes is crucial in the study of metabolic pathways and the production of essential proteins in cells.
Researchers have been studying the valence of existing antibodies to develop new treatments for infectious diseases.
In immunology, valence is a critical factor in understanding how antibodies recognize and bind to specific pathogens to neutralize them.

(chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent).

Nouns denoting attributes of people and objects.

The chemical valence of an atom determines the number of electrons it will gain or lose in a chemical reaction.
Carbon has a valence of four due to the four unpaired electrons in its outermost energy level.
Metals tend to lose electrons to form positive ions, known as cations, as they have a lower valence than the noble gases.
The valence state of an element can be used to predict the number of bonds it will form with other elements in a compound.
Oxygen's valence of two is demonstrated by its formation of two covalent bonds with hydrogen to form water.