Definition, Meaning & Synonyms
atom
noun
/ˈæt.əm/
Definition
The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.
Examples
- Every object you see is made up of atoms.
- The atom consists of protons, neutrons, and electrons.
- Scientists study the behavior of atoms to understand chemical reactions.
Meaning
An atom is the basic building block of matter, which can combine with other atoms to form molecules.
Synonyms
- particle
- element
- molecule (in broader contexts)
