A
chemical reaction is a process that leads to the transformation of one set of
chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of
electrons in the forming and breaking of
chemical bonds between
atoms, with no change to the nuclei (no change to the elements present), and can often be described by a
chemical equation.
Nuclear chemistry is a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes may occur.
