The decay constant of radioactive substance is 0.173 ("years")^(-1) . – InterviewSolution

1.	The decay constant of radioactive substance is 0.173 ("years")^(-1) . Therefore
Answer» One sixth of the RADIOACTIVE substance will be left after 8 years Half life of the radioactive substance is 1/0.173 YEAR Nearly 63% of the radioactive substance will decay in 1/0. 173 years All the above statements are true. Answer :C

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