A nucleus of `Ux_(1)` has a life of 24.1 days. How long a sample of `Ux_(2)` will take to change to 90 % of it to `Ux_(2)` ?

A nucleus of UX_(1) has a half-life of 24.1 days. How long a sample of UX_(1) will take to change 90% of it to UX_(2) ?

A nucleus of Ux_1 has a half life of 24.1 days. How long a sample of Ux_1 will take to change to 90% of Ux_2 .

A nucleus of Ux_1 has a half life of 24.1 days. How long a sample of Ux_1 will take to change to 90% of Ux_1 .

A nucleus of UX_1 has a half - life of 24.1 days.How long a sample UX_1 will take to change 90% of it to UX_2 ?

A nucleus X_1 has a half life of 24 days How long of sample of X_1 will take to change 80% of its to X_2 ?

The half-life of iodine-131 is 8.02 days. How long will it take for 80% of the sample to decay?

A certain radioactive substance has half life period of 10 days. How long will it take for its activity to reduce to 1/8 of its original value ?

A radio active isotope has a half-life of T years. How long will it take the activity to reduce to 1% of its original value ?

A radioactive isotope has a half life of 5 yrs. How long will it take the activity to reduce to 3.125% ?