If `8.0 g` of radioactive isotope has a half life of 10 hours, the half life of `2.0 g` of the same substance is

If 2.0 g of a radioactive isotope has a half life of 20 hr, the half life of 0.5 g of the same substance is

If 8.0 g of radioactive isotope has a half-life of 10 h, the half-life of 2.0 g of the same substance is

If 9.0 g of a radioactive isotope has a half life period of 10 hrs. The half life period of 3.0 g of the same substance is:

If 9.0 g of a radioactive isotope has a half life period of 10 hrs. The half life period of 3.0 g of the same substance is:

If 5 g of an isotope sample has a half life of 30 days, the half life of 2 g of sample is :

If 2g of an isotope has a half - life of 7 days, the half life of 1g sample is

If 2g of an isotope has a half - life of 7 days, the half life of 1g sample is

A radioactive substance has a half-life of 10 hours. Calculate the activity of 10^(-10) gram of the substance after 2 hours if its atomic mass is 102.

If 2.0 g of a radioactive substance has t_(1//2) of 7 days , the half life of 1 g sample is