[" 23.A nucleus of uranium decays at rest into nuclei of "],[" Thorium and Helium.Then : - "],[" (1) The Helium nucleus has less kinetic energy than "],[" the Thorium nucleus "],[" (2) The Helium has more kinetic energy than the "],[" (2) The Helium nucleus."],[" (3) The Helium nucleus has less momentum than "],[" the Thorium nucleus."],[" (4) The Helium nucleus has more momentum than "],[" the Thorium nucleus."]