Note on Radioisotope

A radioisotope is an atom with an unstable nucleus that spontaneously decays, emitting radiation in the form of particles or energy. This decay process transforms the atom into a different nuclide, which may be a different element or a different isotope of the same element.

The half-life of a radioisotope is the time it takes for half of the radioactive atoms in a sample to decay. This is a characteristic property of each radioisotope and is independent of external conditions like temperature or pressure.

Radioisotopes have various applications, including in medical imaging (e.g., Technetium-99m), radiometric dating (e.g., Carbon-14), and cancer treatment (radiotherapy).