The isotope silver-121 undergoes beta decay. Write the reaction equation and determine the identity of the daughter nucleus. 121 Ag → 47 122 cd + 48 e -1 120 cd + 121 Ag → 47 48 121 Ag - 121 pd + 1e 47 46 121 Ag - 47 120 pd + 46 e O 121 Ag 121 cd + e 47 48

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