Radioactivity is due to

Radioactivity is a

Radioactivity is a-

Radioactive is due to

Radioactivity is the property due to which a heavy nucleus can decay..................without the help of an external agent.

The radioactivity due to C-14 isotope (half-life = 6000 years) of a sample of wood form an ancient tomb was found to be nearly half that of fresh wood. The bomb is there for about

The radioactivity due to C-14 isotope (half-life = 6000 years) of a sample of wood form an ancient tomb was found to be nearly half that of fresh wood. The bomb is there for about

The radioactivity due to C_14 isotope of same of wood from an ancient tomb was found to be nearly halkf of fresh wood the tomb is therefore about (half life =6000 years)

Upon irradiating californium with neutrons, a scientist discovered 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?