Since at least 2016, a rumor has circulated online that "a speck of dust is halfway between the size of" an atom and Earth. However, Wendy Taylor, a particle physicist and professor of physics and ...
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How Small is an Atom?

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