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(a) Write the complete $\beta^{-}$ decay equation for $^{90} \mathrm{Sr},$ a major waste product of nuclear reactors. (b) Find the energy released in the decay.
a) $_{38}^{90} \mathrm{Sr}_{52} \rightarrow_{39}^{90} \mathrm{Y}_{51}+\beta^{-1}+\overline{v_{e}}$b) 0.546 $\mathrm{MeV}$
Physics 103
Chapter 31
Radioactivity and Nuclear Physics
Nuclear Physics
Cornell University
Rutgers, The State University of New Jersey
University of Michigan - Ann Arbor
Simon Fraser University
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part off the problem we have this are that the case s r 62 um, 90 metal mask, then 38 year decays into why 19? 90 of 39 in 61 possible. So this is a party. But we were asked to find Ah, the energy than energy can be found by multiplying adult time changing moss time. Speed of light square. So the change in mass we here for this decay is Ah, Marcel. Fists are, which is 89 0.97 soon 77 minus minus mask for Wally, that is. And 89.9 071 of plus, um, the the muscles, the better. Refugees 0.0 three zeros followed, then 54 Ah, Then here we have 85 feet eight, then some. Tricking these numbers gives us the 5 12 times 10 to the power minus you atomic mass units. You and energy will be thes numbers this number time, Uh, again the nine three, $1.5 million for the world and this Use us the final result meters zero zero for seven seven Mega withdrawn. So this amount of energy is released them in the chemical reaction. End off the problem. Thank you for watching
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