define atom

An atom is defined as the basic unit of element which possesses the properties of the element. By basic, we mean that it is the building block of matter . It is the smallest particle of an element that can take part in a chemical reaction. Every atom consists of protons, neutrons and electrons. For example Carbon will consist of atoms which will show the properties of carbon only and not any other element.

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Atoms are the basic building blocks of ordinary matter. Atoms can join together to form molecules, which in turn form most of the objects around you.

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