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The atom

The atom is the basic unit of matter.

Atoms are the building blocks of molecules.

You need at least two atoms linked by a covalent chemical bond to form a molecule.

The atom consists of a nucleaus surrounded by a cloud of electrons.

Everything is made of atoms, and atms are by particles of matter

you are made of billions of atoms, but we can find only 40 different types of atoms (elements) mostly hydrogen and oxygen
 

By: José Antonio Gandullo Torres.