A radioactive element reduces to 25% of its initial value in 1000 years. What is half-life of the element ?

A radioactive element reducess to 32st of its initial value in 1000 years . What is half life of the element ?

A radioactive element reducess to 32st of its initial value in 1000 years . What is half life of the element ?

The nuclear activity of a radioactive element becomes (1/8)^(th) of its initial value in 30 years. The half-life of radioactive element is ________ years.

The activity of a radioactivity substance fall to 87.5% of the initial value in 5 years. What is the half life of the elements? calculate the time in which the activity will fall by 87.5%.

What is half life of radioactive element?

The activity of a radioactive element reduces to (1//16)th of its original value in 30 years. Find its half life?

The activity of a radioactive element reduces to (1//16)th of its original value in 30 years. Find its half life?

The radioactivity of a certain radioactive element drops to 1//64 of its initial value in 30 seconds. Its half-life is.