heusdens
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Originally posted by wuliheron
As you get down to irreducible parts such as quarks, it is difficult to tell the difference between the parts, the whole, and the properties.
Quarks are a different story, they can be identified as separate entities, but they do not exist "on their own", but always in duo's (mesons) or triplets (baryons) having always neutral "colour" charge.
Electrons are definitely separate entities, they can exist far from atoms.