Pronunciation

/ˈætəm/

Definitions

Noun

1. A fundamental unit of matter, consisting of protons, neutrons, and electrons, that cannot be divided without changing the chemical properties of an element.
   • Definition (Physics): The smallest component of an element that retains its chemical identity.
   • Definition (Chemistry): A building block of all elements, consisting of a nucleus surrounded by electrons.

Verb

1. To break down into constituent atoms or molecules.
2. To analyze or decompose into basic components.
3. To perceive or understand something on a fundamental level.

Phrases

• “Atomic structure” refers to the arrangement of particles within an atom.
• “Atomic number” denotes the number of protons in an atom’s nucleus.
• “Atomic theory” is the scientific understanding of how atoms combine to form substances.

Example Sentences

• Noun: “The periodic table arranges elements based on their atomic numbers.”
• Verb: “The scientists managed to atomize the metal into its basic components.”
• Verb: “To understand chemistry, one must grasp the atomic principles.”

Synonyms

• Protonium
• Molecule
• Particle
• Constituent unit
• Basic building block

Antonyms

• Compound
• Molecular
• Composite
• Complex (in the context of structure)