The initial activity of a certain radioactive isotope was measured as 16000 counts / min. Given that the only activity measured was due to this isotope and that its activity after 12 h was
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The initial activity of a certain radioactive isotope was measured as 16000 counts / min. Given that the only activity measured was due to this isotope and that its activity after 12 h was The initial activity of a certain radioactive isotope was measured as 16000 counts / min. Given that the only activity measured [...]