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    Up, down, top, bottom, charm, .....

    What is the missing word?

    +2  Views: 619 Answers: 3 Posted: 13 years ago

    3 Answers

    STRANGE..

    I give up, what is it?

    nomdeplume

    They are quarks. I thought everyone knew that.
    jhharlan

    Quarks? no, I'm not familiar with them....
    itsmee

    jhharlan ... It would be fun to know that stuff. Eh?

    Protons and neutrons are composed of quarks of which there are 6 varieties, as above. Also you have leptons : electrons muons, tau, electron neutrinos, muon neutrinos and, of course, tau neutrinos.


    These are stuck together by bosons assuming that the Standard Model is correct. We await the discovery of the Higgs Boson to prove this theory.


    So a proton is composed of 2 up quarks and one down quark, and a neutron is made of  2 downs and one up.


    Now do you understand?



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