Question

what is mean atom and electron​

Answer 1

Explanation:

An electron is a negatively charged subatomic particle. It can be either free (not attached to any atom), or bound to the nucleus of an atom. Electrons in atoms exist in spherical shells of various radii, representing energy levels. ... The charge on a single electron is considered as the unit electrical charge.

Answer 2

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Atom :-

An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element

Electron :-

• The electron is a subatomic particle, symbol e⁻ or β⁻ , whose electric charge is negative one elementary charge.

• Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.