[" 5.If "u^(238)" preparation of mass "1gr" a "m_(" an ")],[1.24times10^(4)" alpha particles per second,"],[" half-life of the preparation is "]

U^238 emits

Consider the fission of ._(92)^(238)U by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primay fragments, are ._(58)^(140)Ce and ._(44)^(99)Ru . Calculate Q for this fission process. The relevant atomic and particle masses are m(._(92)^(238)U)=238.05079 u m(._(58)^(140)Ce)=139.90543 u m(._(44)^(99)Ru)=98.90594 u

Consider the fission of ""_(92)^(238)U by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primary fragments, are ""_(58)^(140)Ce and ""_(44)^(99)Ru . Calculate Q for this fission process. The relevant atomic and particle masses are m(""_(92)^(238)U) =238.05079 u m( ""_(58)^(140)Ce ) =139.90543 u m(""_(44)^(99)Ru ) = 98.90594 u