Question

What is an atom?.......​

Answer 1

Explanation:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

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Answer 2

Answer:

Atom :

Atoms are the basic units of matter and the defining structure of elements. The term "atom" comes from the Greek word for indivisible

Atom is made up of three fundamental particles called electrons,protons,and neutrons