Question

What is atom ??????​

Answer 1

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.

Answer 2

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Atoms are the basic building blócks of ordinary matter.

Characteristics :-

• Typical sizes of atom and nucleus.
• Most of atom's mass is in the nucleus.
• Constituents: protons, neutrons, electrons.
• Electric force holds atom together.
• Nuclear force holds nucleus together.
• Atoms, ions.
• Atomic number