Question

what is atom. define
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Answer 1

Answer:

An atom is a particle of matter that uniquely defines achemical element. An atom consists of a central nucleus that is usually surrounded by one or more electrons. ... The nucleus is positively charged, and contains one or more relatively heavy particles known as protons and neutrons.

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Answer 2

Answer:

The smallest particle of a chemical element is called atom.

Explanation:

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