4 ms·> something that exists cannot logically have a zero diameter part Do elementary particles exist?by klank 7y ago> something that exists cannot logically have a zero diameter part Do elementary particles exist?pbhjpbhj 7y agoNo, only observations of them do ;o)ars 7y agoElementary particles have size delineated by the forces that act on them. The concept of a "physical size" has no meaning, since particles don't act upon each other that way. But the forces do not have a zero size, and that's important.