Upon irradiating californium with neutrons, a scientistdiscovered a ne – InterviewSolution

1.	Upon irradiating californium with neutrons, a scientistdiscovered a new nuclide having mass number of 250 and a half-life of 30 min. After 90 min. of irradiation, the observed radioactivity due to nuclied was 100 dis/min. How many atoms of the nucliede were prepared intially?
Answer» `2.4xx10^(4)` `3.46xx10^(4)` 1900 800 Answer :B

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