A certain radioactive isotope ._(Z)^(A)X(t_(1//2)=100 days decays to . – InterviewSolution

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1.	A certain radioactive isotope ._(Z)^(A)X(t_(1//2)=100 days decays to ._(Z-2)^(A-8)Y . If 1 mole of ._(Z)^(A)X is kept in sealed container , how much He gas will accumulate at STP in 200 days?
Answer» 11.2 litres 33.6 litres 22.4 litres 44.8 litres Answer :B

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