👉 The term "radionuclide" is a technical term used in nuclear medicine and radiology to describe any radioactive substance that has been exposed to an external source of radiation. It can be either a single element or a mixture of elements, and it can have different isotopic compositions depending on the type of radioisotope. Some common examples of radionuclides include: 1. Carbon-14 (C-14) - A radioactive isotope used in radiocarbon dating
