The half-life of isotope X is 3 days, how long will it take for one half of 10g sample to decay

Answer : It will take 3 days for one half of a 10g sample to decay.

Explanation:

Half-life period : It is defined as the time taken for half life of the reaction to complete that is the time in which the concentration of a reactant is reduced to half of its original value.

As per given in the question,

The half-life of isotope X = 3 days

when the original amount of sample (10g) will be half then the half-life of sample is, 3 days.

Hence, it will take 3 days for one half of a 10g sample to decay.