We know that atoms are mostly empty space. But what is the “stuff” between the electrons and the nucleus? Is it literally nothing, or can things like neutrinos and other very small particles pass through? Thanks in advance..
The empty space in atoms is, indeed, literally nothing.
However, this empty space doesn’t stop extremely tiny particles like neutrinos from passing through. Neutrinos are incredibly small and can pass through most matter, including the empty space in atoms, without interacting.
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