gabbgabb03 gabbgabb03 08-06-2017 Chemistry contestada 1. first nuclear reactor curie 2. neutron 3. splitting of nuclei into lighter elements atomic mass 4. number of neutrons and protons Becquerel 5. builds heavier elements Fermi 6. discovered radioactivity fission 7. unit of radiation fusion NEED HELP PUTTING THEM IN ORDER!?!?!