Original sentence: If the number of both the protons and neutrons in a given isotope are even then , i.Most radioactive nuclei (with some rare exceptions) that have both even numbers of protons and even numbers of neutrons, also have zero nuclear magnetic moments-and also have zero magnetic dipole and quadrupole moments; therefore, such radioactive isotopes do not exhibit any NMR absorption spectra.Thus, , , and  are examples of radioactive nuclear isotopes that have no NMR absorption, whereas  , ,  and  are stable nuclear isotopes that do exhibit NMR absorption spectra; the last two nuclei are quadrupolar nuclei whereas the preceding two nuclei ( and ) are dipolar ones
Edited sentence: If the number of both the protons and neutrons in a given nuclide are even then , i.Most radionuclides (with some rare exceptions) that have both even numbers of protons and even numbers of neutrons, also have zero nuclear magnetic moments-and also have zero magnetic dipole and quadrupole moments; therefore, such radionuclides do not exhibit any NMR absorption spectra.Thus, , , and  are examples of radionuclides that have no NMR absorption, whereas  , ,  and  are stable nuclides that do exhibit NMR absorption spectra; the last two nuclei are quadrupolar nuclei whereas the preceding two nuclei ( and ) are dipolar ones