Atomicity vs. Valency — What's the Difference?

The state of being composed of atoms.

Variant of valence.

The number of atoms in a molecule.

The capacity of something to combine with other things, as for example the capability of a vaccine as measured by the number of pathogen serotypes that it can counteract.

The number of atoms in a molecule.

The combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with

Valence. No longer in technical usage.

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(historical) valence

The number of edges connected to a vertex in a graph.

The state of a system (often a database system) in which either all stages complete or none complete.

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(uncountable) The quality or state of being atomic.

(uncountable) Importance, significance.

Degree of atomic attraction; equivalence; valence; also (a later use) the number of atoms in an elementary molecule. See Valence.

See Valence.

The phenomenon of forming chemical bonds

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

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