Answer: Daughter product that is formed after the beta-minus decay of [tex]_{81}^{206}\textrm{Th}[/tex] is [tex]_{82}^{206}\textrm{Pb}[/tex]
Explanation: Beta-minus decay is a process in which an unstable radioactive atom forms a stable molecule.
In this decay, a neutron results in the formation of a proton and an electron.
Beta-minus decay of [tex]_{81}^{206}\textrm{Th}[/tex] follows:
[tex]_{81}^{206}\textrm{Th}\rightarrow _{82}^{206}\textrm{Pb}+_{-1}^0\beta [/tex]
Daughter product is [tex]_{82}^{206}\textrm{Pb}[/tex]