fernandofhn9820 fernandofhn9820 22-03-2024 Chemistry contestada In each of the following pairs of nuclides, one is stable and the other is radioactive. Identify the stable isotope in each case and give your reasoning." A. Cr-56 or Cr-52 B. Po-209 or Pb-207 C. Co-60 or Co-59 D. H-3 or H-1