/ ˈnuːkliər riˈækʃn̩ /
Prevedi nuclear reaction na: srpski
A process that alters the energy or structure or composition of atomic nuclei.
Reaction involving the nuclei of atoms. Atomic nuclei can undergo changes either as a result of radioactive decay, as in the decay of radium to radon (with the emission of an alpha particle) or as a result of particle bombardment in a machine or device, as in the production of cobalt-60 by the bombardment of cobalt-59 with neutrons. 22688Ra ® 22286Rn + 42He 5927Co + 10n ® 6027Co + g Nuclear fission and nuclear fusion are examples of nuclear reactions. The enormous amounts of energy released arise from the mass–energy relation put forward by Einstein, stating that E = mc2 (where E is energy, m is mass, and c is the velocity of light).
In nuclear reactions the sum of the masses of all the products (on the atomic mass unit scale) is less than the sum of the masses of the reacting particles. This lost mass is converted to energy according to Einstein's equation.