 The known isotopes of cadmium range in atomic mass from 94 @.@ 950 u ( 95Cd ) to 131 @.@ 946 u ( 132Cd ) . For isotopes lighter than 112 u , the primary decay mode is electron capture and the dominant decay product is element 47 ( silver ) . Heavier isotopes decay mostly through beta emission producing element 49 ( indium ) . 
 The known isotopes of cadmium range in atomic mass from 94 @.@ 950 u ( 95Cd ) to 131 @.@ 946 u ( 132Cd ) . For isotopes lighter than 112 u , the primary decay mode <a href='drop_aux' title='1'><mark>is</mark></a>electron capture and the dominant decay product <a href='drop_aux' title='2'><mark>is</mark></a>element 47 ( silver ) . Heavier isotopes decay mostly through beta emission producing element 49 ( indium ) . 
The known isotopes of cadmium range in atomic mass from 94 @.@ 950 u ( 95Cd ) to 131 @.@ 946 u ( 132Cd ) . fir isotopes lighter den 112 u , the primary decay mode electron capture and da dominant decay product element 47 ( silver ) . Heavier isotopes decay mostly through beta emission producing element 49 ( indium ) .