A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are …

Oct 19, 2025 · Fort Collins, city, seat (1868) of Larimer county, northern Colorado, U.S. It lies along the Cache la Poudre River (the state’s “Trout Route”), in the eastern foothills of the Front …

A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are …

Radioactive isotopes, or radioisotopes, are species of chemical elements that are produced through the natural decay of atoms.

Carbon-14, the longest-lived radioactive isotope of carbon, whose decay allows the accurate dating of archaeological artifacts from 500 to 50,000 years old. Carbon-14 has a half-life of …

Radioisotopes are unstable forms of chemical elements that form as the result of spontaneous radioactive decay. As diagnostic agents, radioisotopes commonly are used as tracers.

A radioactive isotope, also known as a radioisotope, radionuclide, or radioactive nuclide, is any of several species of the same chemical element with different masses whose nuclei are …

Oct 24, 2025 · The rate at which a radioactive element decays is expressed in terms of its half-life; i.e., the time required for one-half of any given quantity of the isotope to decay.

Oct 21, 2025 · Colorado State University, public, coeducational institution of higher learning in Fort Collins, Colorado, U.S. It is a land-grant university and a part of Colorado’s state …

The movement of a chemical element under study may be traced by adding a radioactive isotope (or radioisotope) of the same element. The radiations emitted by such a radioisotope can be …