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Atom
01
(science) the smallest part of a chemical element that is found in the nature
02
(nontechnical usage) a tiny piece of anything
Example
Atoms of different elements have distinct properties based on their atomic structure.
The concept of the atom as the fundamental building block of matter dates back to ancient Greek philosophy.
Chemical reactions involve the rearrangement of atoms to form new compounds.
The atom is composed of a nucleus containing protons and neutrons, surrounded by electrons.
Scientists use sophisticated instruments such as electron microscopes to observe and study the structure of atoms.
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