A radioactive isotope having a half life of 3 days was received after 12 days. It was found that there were 3 gm of the isotopes in the container. The initial weight of the isotope when packed was

A radioisotope having a half life of 3 days was received after 12 days. It was found there were 3 g of the isotope in the container. The initial weight of the isotope when packed was

A radio active isotope having a half life of 3 days was received after 9 days. It was found that there was only 4 gms of the isotope in the container. The initial weight of the isotope when packed was

A radioactive isotope having a half life of 2.3 days was received after 9.2 days. It was found that there were 300mg of the isotope in the container. The initial amount of the isotope was

A radioactive substance having a half life period of 3 days was received after 12 days. It was found that there was 3 g of the isotope in the container. The initial weight of the isotope when placed was :

A radioactive substance having a half life period of 5 days was received after 20 days. It was found that there was 3 g of the isotope in the container. The initial weight of the isotope when placed was:

A radioactive istope having a half-line of 3 day was received after 12 day. It was found that there were 3 g the istope when packed was: