A sample of radioactive element with `t_(0.5)` of 11.2yr weigh 2.0 g . After 33.6 yrs how much is left ?

A sample of radioactive isotope with a half life of 20 days weighs 1 g . After 40 days the weight of the remaining elements is a. 0.5 g b. 0.0 g c. 0.25 g d. 1//6 g

A sample of radioactive isotope with a half life of 20 days weighs 1 g . After 40 days the weight of the remaining elements is a. 0.5 g b. 0.0 g c. 0.25 g d. 1//6 g

A sample of radioactive element has a mass of 10 g at an instant t=0 . The approximate mass of this element in the sample after two mean lives is

A sample of radioactive element has a mass of 10 g at an instant t=0 . The approximate mass of this element in the sample after two mean lives is

A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the sample left after two mean lives is

A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the sample left after two mean lives is

A sample of a radioactive element has a mass of 10 g at an instant t=0 . The approxiamte mass of this element in the sample after two mean lives is .

The half-life of a radioactive element is 10 hours. How much will be left after 4 hours in 1g atom sample?