Does iron have any radioactive isotopes?

Yepp! As the last stage of the fusion process in stars is the formation of iron the heavier elements would not exist. Further fusion is endothermic and will not happen in a living star. By absorbing neutrons the heavier elements are created out of iron (high neutron flux necessary: e.g. exploding stars or close to neutron stars.). read more

Isotopes of iron The iron subsequently absorbs neutrons and thus exotic iron-isotopes are generated. During the decay, these neutrons are changed into protons and thus the heavier elements of the universe are generated (r-process). read more

Iron-60. Iron-60 is an iron isotope with a half-life of 2.6 million years, but was thought until 2009 to have a half-life of 1.5 million years. It undergoes beta decay to cobalt-60, which then decays with a half-life of about 5 years to stable nickel-60. Traces of iron-60 have been found in lunar samples. read more

The four stable isotopes of iron are iron-54, iron-56. iron-57 and iron-58. However, iron-54 is considered to be observationally stable which means that it is possibly radioactive (unstable), but has a half life that is older that the age of the planet. read more