Shivam sharma Asked a Question
September 3, 2020 4:16 pmpts 30 pts
(ii) Using equation in 33{aXi), estimate the decay constant, which would be suitable for dating 4.2 Ga old rock. Assume that the rock has roughly equal proportions of parent and daughter atoms at present. Consider ln 2 = 0.693. (3) )Name the radioactive isotopes, which yield 20*Pb, Pb and "Pb. (9)
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  • Sajan sarthak sahoo Best Answer
    see answer for question 1in updated attached file that is 1.54 * 10^-10 Answer for second one There are four radioactive isotopes of lead: 210Pb and 214Pb in the 238U decay chai...
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  • Sajan sarthak sahoo thankyou
    see the answer shivam
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  • Shivam sharma
    That equation is the relation between half life and Decay constant
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    Sajan sarthak sahoo
    see the answer shivam
  • Shivam sharma
    So Half life equal to 0.693 Divided by Decay constant
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