The part of chemistry which deals with the chemical effects of @I03216@, as distinguished from @P04588@ associated with @VT07496@ and @UT07492@ electromagnetic radiation.
Sources: Orange Book, 2nd ed., p. 236 [Terms] [Book] PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2523 [Terms] [Paper]