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nuclear process comparison table
Subject produces energy has temperature dependence has definition has minimum temperature has product has reactant has catalyst has antonym has reaction probability
fission  Interaction in which nucleons previously united in an atomic nuclei are disjoined, releasing energy. Fission powers atomic bombs.    fusion 
fusion  Process by which the Sun (and other stars) radiates energy. The nucleus of an atom fuses with the nuclei of other atoms to form new, heavier atoms at the same time releasing large amounts of energy. In the Sun, hydrogen atoms are converted into helium by this process, with carbon and nitrogen as intermediates. Cooler stars undergo the proton-proton cycle with a similar result.    fission 
nuclear decay         
nucleosynthetic reaction         
pycnonuclear reaction weakNuclear process that take place at relatively low temperatures and that are not strongly temperature-dependent.relatively low     
Urca process  A series of nuclear reactions, primarily among the iron group of elements, accompanied by a high rate of neutrino formation and postulated as a cause of stellar collapse. Neutrinos carry away energy quickly and invisibly, so this process was named for the Urca casino in Rio de Janeiro, which carried away money the same way.      

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