Question

what is meant by atom?​

Answer 1

Atom is the smallest particle capable of independent existence. It was thought to be the smallest object in the universe before the discovery of sub-atomic particles such as neutrons, protons, and electrons.

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Answer 2

Answer:

Atoms are the smallest particles. They are building blocks of all matter

Explanation:

Atoms are very small. Relatively 10-10power nm there are many atoms like hydrogen gold copper which 2 or more same atom join and form molecules and those molecules form pure substance or elements