at·o·mic·i·ty 
(ăt′ə-mĭsĭ-tē)
(ăt′ə-mĭsĭ-tē)n.
1. The state of being composed of atoms.
2. Chemistry
a. The number of atoms in a molecule.
b. Valence.
- unconscionable
- unconscionableness
- unconscionably
- unconscious
- unconsciously
- unconsciousness
- unconsidered
- unconsolable
- unconsolably
- unconsolidated
- unconstitutional
- unconstitutionality
- unconstitutionally
- unconstructed
- uncontaminated
- uncontested
- uncontrollability
- uncontrollable
- uncontrollableness
- uncontrollably
- uncontrolled
- uncontrolledness
- uncontroversial
- uncontroversially
- unconventional