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 Protoni i neutroni u nukleusu

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mentalist fenky



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Join date : 2016-02-29

PostSubject: Protoni i neutroni u nukleusu   Mon Feb 29, 2016 6:41 pm

Zanima me zašto su protoni u jezgri lakši od neutrona, dali možda zbog elektromagnetskih sila?
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Marko Muić
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PostSubject: Re: Protoni i neutroni u nukleusu   Tue Mar 01, 2016 10:42 am

Neutron je građen od dva donja kvarka, a proton od dva gornja kvarka. Donji kvark je težak oko 4.8 MeV, a gornji kvark oko 2.0 MeV. Zato je neutron teži.
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mentalist fenky



Posts : 65
Join date : 2016-02-29

PostSubject: Re: Protoni i neutroni u nukleusu   Fri Mar 04, 2016 9:36 am

Možete mi detaljnije objasniti šta su gornji, a šta donji kvarkovi, nisam u tijeku...
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Marko Muić
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PostSubject: Re: Protoni i neutroni u nukleusu   Fri Mar 04, 2016 11:16 am

Kvarkovi su čestice od kojih se sastoje hadroni. Postoje gornji kvark, donji kvark, strani kvark, čaroban kvark, vršni i dubinski kvark. Kvarkovi čine hadrone, a proton i neutron su primjeri hadrona.
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