How Big is a Typical Atom?

How big is a typical atom? Take the width of a human hair and divide it by two, then divide that by two, then divide that by two, and so on, until you have reduced each half by half a total of 20 times. That will be the width of a typical atom, roughly one millionth the thickness of a human hair. Now, just for fun, divide the width of the atom in half 13 times and you will have the width of its nucleus.

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