Question: A radioactive element X decays to y which in term decays to a stable element z. The decay constant from X to Y is

A radioactive element X decays to y which in term decays to

A radioactive element X decays to y which in term decays to a stable element z. The decay constant from X to Y is 1, and that from Y to Z is 2 If, to begin with, there are only No atoms . of x, at short times (t < < 1/1, as well as 1/2) the number of atoms of z will be:

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