Decays to through a series of and emissions

CHEMISTRY · Single correct · CBSE · Chemistry · Structure of Atom · Structure of Atom

Problem

88226Ra_{88}^{226}\text{Ra} decays to 82206Pb_{82}^{206}\text{Pb} through a series of α\alpha and β−\beta^{-} emissions. Which combination of decays could account for this transformation? (a) 5 α\alpha decays and 2 β−\beta^{-} decays (b) 4 α\alpha decays and 2 β−\beta^{-} decays (c) 5 α\alpha decays and 4 β−\beta^{-} decays (d) 5 α\alpha decays and 6 β−\beta^{-} decays

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