Actinium-234 is a radioactive isotope of the element Actinium, which has the atomic number 89. It is produced through the decay of Uranium-238 and has a half-life of about 1.17 minutes. This means that it rapidly transforms into other elements, primarily Thorium-230, through a process called alpha decay. Due to its short half-life, Actinium-234 is not commonly found in nature and is primarily of interest in scientific research and nuclear studies. It is part of the uranium decay series, which involves a sequence of transformations that lead to the formation of stable isotopes over time.