Question

What is a radioactive isotope

Answer 1

Is a atom that has to much nuclear energy. Which makes it unstable

Answer 2

radionuclide is an atom that has excess nuclear energy, making it unstable. This excess energy can be used in one of three ways: emitted from the nucleus as gamma radiation; transferred to one of its electrons to release it as a conversion electron; or used to create and emit a new particle from the nucleus