Question

what is an atom explain
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Answer 1

Explanation:

An atom is the smallest particle of a substance.

They are very tiny so that we can't se them with the naked eyes.

Answer 2

Answer:

Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry

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