The advent of radioactive isotopes into the field of medical diagnosis came only in very recent years, just about the time Dr. Holmes was withdrawing from his general work. I am sure that ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...

Stable isotopes do not decay into other elements. In contrast, radioactive isotopes (e.g., 14C) are unstable and will decay into other elements. The less abundant stable isotope(s) of an element have ...

Australia's Open Pool Australian Lightwater (OPAL) research reactor has the potential to “make a real difference” in the effort to deal with the global shortage of radioactive isotopes used ...

This process of releasing radiation and forming a new radionuclide continues until stable lead-208 is formed. The half-life of thorium-232 is about 14 billion years. Two other isotopes of thorium, ...

Have teams use their charts to find their isotope's half-life. A half-life is a measure of the average lifetime of a radioactive substance, and specifies the time it takes for one-half of the ...