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What is the smallest unit of matter?

What is the smallest unit of matter? Find the answer to this question and access a vast question bank that is customized for learners.

Answer: An atom is the smallest unit of matter known to retain all chemical properties of an element. 

  • Atoms are the fundamental unit of matter.
  • Each element’s atom differs from every other element’s atom, as confirmed by science. 
  • Even an atom can be broken down into smaller pieces, known as quarks, which can be further subdivided.