atomisitet

Atomisitet is a term used in several disciplines to describe the property of being atomic or purely composed of atoms, or in a more general sense the indivisibility of a unit of operation. The exact meaning depends on context.

In chemistry, atomicity refers to the number of atoms that constitute a molecule. Substances can be monatomic (one atom per molecule, e.g., helium), diatomic (two atoms per molecule, e.g., O2), or polyatomic (three or more, e.g., CO2, H2O). The concept is used to discuss bonding, reaction stoichiometry, and molecular structure.

In computer science and information systems, atomicity is a property of operations or sequences of operations: they are indivisible and either complete fully or have no effect. This is a core aspect of transactional systems (ACID properties: Atomicity, Consistency, Isolation, Durability). If a step within a transaction fails, the system must roll back to the state before the transaction began.

In philosophy and the history of science, atomism is the view that matter is composed of small, indivisible components called atoms. Early atomists like Leucippus and Democritus influenced later scientific theories, culminating in Dalton’s atomic theory and modern particle physics.