A radioactive isotope having `t_(1/.2)=2.3` days was received after 9.2 days . It was found
Channel: Doubtnut
Date: 2021-11-08

A radioactive isotope having `t_(1/.2)=2.3` days was received after 9.2 days . It was found that 300 mg of the isotope was left in the container. The initial amount of the isotope was