The ATOM is considered the basic unit of any element. It is an indivisible element.
An atom can be considered the smallest unit in which a fragment of matter can be divided.
All types of elements in any state (solid, liquid or gas) are composed of atoms, which can be neutral or ionized.
These elements (atoms) can combine in order to generate different types of molecules (e.g., C6H12O6, H2O, etc).
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