The half life of radioactive isotope is 3 hour. If the initial mass of isotope were 256 g, the mass of it remaining undecayed after 18 hr is

The half-life of a radioactive isotope is 3 hour. IF the initial mass of isotope were 256g the mass of it remaining undercayed after 18hr is:

The half life of a radioactive isotope is 3 hours. If the initial mass of the isotope were 256 g, the mass of it remaining undecayed after 18 hours would be:

The half life of a radioactive isotope is 4 hours. If the initial mass of the isotope were 25 g, the mass of it remaining undecayed after 12 hours would be:

The half-life of a radioactive isotope is three hours. If the initial mass of the isotope were 256 g, the undecayed remaining mass after 18 hours would be

The half life of a radioactive isotope is three hours. If the initial mass of the isotope was 300 g, the mass which remained undecayed in 18 hours would be :

The half life of a radioisotope is 1.5 hours is (the initial mass of isotope is 32 g)