what is atom ???????
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An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small; typical sizes are around 100 picometers
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Atoms are the basic building blocks of ordinary matter. Atom can join together to form molecules ,which in turn from most of the objects around you .Atoms are composed of particles is called protons, electrons and neutrons
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