thorium series वाक्य

In this scheme, 227Th was named radioactinium ( RdAc ), 228Th radiothorium ( RdTh ), 230Th ionium ( Io ), 231Th uranium Y ( UY ), 232Th thorium ( Th ), and 234Th uranium X1 ( UX1 ) . [ 18 ] This reflects that 227Th and 231Th occur in the decay chain of natural 235U ( the actinium series ), 228Th occurs in the decay chain of 232Th ( the thorium series ), and that 230Th occurs in the decay chain of 238U ( the uranium or radium series ) . "-- think this belongs here, except needs to be re-written into a nice story : after you mention the first discovery of radioactivity, it generally makes sense to say something along the lines of " Research on radioactivity sparked like fire, and many new nuclides have been found that received their own names : . . . At one moment [ say when ], however, it became apparent that all of these were isotopes of the same element as the nuclide that was at that time referred to as " thorium " [ Th's only natural one, 232Th ].