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Atoms are the building blocks of matter. Everything around us — from air and water, to rocks, plants and animals — as well as everything within our bodies, is made up of atoms. They are very small, ...

The size of an atom is only a few angstroms at most - there are 10 billion angstroms in 1 metre. This video also looks at the basic parts of an atom (protons, neutrons and electrons) and why the ...