10 g-atoms of an `alpha`-active radioisotope are disintegrating in a sealed container. In one hour
Channel: Doubtnut
Date: 2020-07-12

10 g-atoms of an `alpha`-active radioisotope are disintegrating in a sealed container. In one hour the helium gas collected at STP is `11.2 cm^(2)`. Calculate the half life of the radioisotope.