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Question
The purpose of producing ${}^{99}\textrm{Mo}$ (usually by neutron activation of natural molybdenum, as in the preceding problem) is to produce ${}^{99\textrm{m}}\textrm{Tc}$. Using the rules, verify that the $\beta^-$ decay of ${}^{99}\textrm{Mo}$ produces ${}^{99\textrm{m}}\textrm{Tc}$. (Most ${}^{99\textrm{m}}\textrm{Tc}$ nuclei produced in this decay are left in a metastable excited state denoted ${}^{99\textrm{m}}\textrm{Tc}$ .)
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