Could there be anything smaller inside...

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Could there be anything smaller inside of an electron or inside of a neutron or a proton?

Yes, there could. Right now, our best evidence says that there are particles inside of neutrons and protons. Scientists call these particles quarks. Our best evidence also shows us that there is nothing inside of an electron except the electron itself.

Author:

Mac Mestayer, Staff Scientist (Other answers by Mac Mestayer)

All About Atoms

What is the smallest particle of matter known?

How many quarks are in a proton? How many quarks are in a neutron?

What kinds of quarks are protons and neutrons made of? What was the old name for the Top and Bottom quark?

What is the charge of an up quark and the charge of a down quark? How many quarks make up a proton and a neutron?

Are quarks confineable for study?

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