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An atom is a very small constituting unit of matter that exhibits the chemical properties of that matter. In this way, atoms can be called the building blocks of matter. All kinds of matter (solids, liquids, and gases) can be divided into atoms.

Atoms do not exist on their own...

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An atom is a very small constituting unit of matter that exhibits the chemical properties of that matter. In this way, atoms can be called the building blocks of matter. All kinds of matter (solids, liquids, and gases) can be divided into atoms.

Atoms do not exist on their own in nature. They form chemical bonds with other atoms to make molecules. These molecules in large number then form matter. Atoms can also exist as ions, carrying positive or negative charges.

Atoms are so small that they cannot be seen with the naked eye. They were once believed to be the smallest particle in nature that could not be broken down any further. In fact, the word atom is derived from the Greek word atomos, which literally means indivisible. However, as we now know, atoms are made up of neutrons, protons, and electrons. Moreover, these subatomic particles are made of even smaller particles known as quarks.

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