They are composed of two up quarks and a down quark.
These particles collide with their own antiparticles in an accelerator which detected the top quark at Fermilab. They are emitted along with carbon-14 when cosmic rays strike nitrogen nuclei in the atmosphere, and they can be used toelucidate chemical structures in their namesake type of NMR. They are converted into a particle with nearly thesame mass while emitting a neutrino in a form of beta decay called electron capture. They are composed of two up quarks and a down quark. Equivalent to an H+ ion, for 10 points, name this particle with mass of 1 amu and chargeof +1, which resides in the nucleus alongside the neutron.
These particles collide with their own antiparticles in an accelerator which detected the top quark at Fermilab.
proton [accept antiproton on the first sentence]