The process of changing one element to another through nuclear decay is called transmutation.
Answer: Transmutation
Explanation:
Transmutation is the process in which the nuclei of the atom changes to another nuclei by the process of nuclear degradation. This process yields energy and hence is an exothermic reaction.
The radioactive isotopes changes continuously to form a new element until the nucleus becomes stable. In this process, either a new element is formed or the isotope of the decaying element is formed. The nucleus of the atom converts or transforms to the nucleus of lower energy state and emits energy.
