Iron Isotopes. Isotopes, Iron . Stable iron atoms that have the same atomic number as the element iron, but differ in atomic weight. Fe-54, 57, and 58 are stable iron isotopes. . 0.76
Carbon Isotopes. Isotopes, Carbon . Stable carbon atoms that have the same atomic number as the element carbon, but differ in atomic weight. C-13 is a stable carbon isotope. . 0.75
Cerium Isotopes. Isotopes, Cerium . Stable cerium atoms that have the same atomic number as the element cerium, but differ in atomic weight. Ce-136, 138, and 142 are stable cerium isotopes. . 0.75
Iodine Isotopes. Isotopes, Iodine . Stable iodine atoms that have the same atomic number as the element iodine, but differ in atomic weight. I-127 is the only naturally occurring stable iodine isotope. . 0.73
Sodium Isotopes. Isotopes, Sodium . Stable sodium atoms that have the same atomic number as the element sodium, but differ in atomic weight. Na-23 is a stable sodium isotope. . 0.73