Question

Assume you have 1000 grams of a radioactive isotope that has a half-life of 6 days. How much would you expect to still be radioactive at the end of 5 days?

Answer 1

After 5 days, approximately 610.35 grams of the radioactive isotope would still be radioactive.

Step-by-step explanation:

The half-life of a radioactive isotope is the time it takes for half of the original sample to decay. In this case, the isotope has a half-life of 6 days.

After 5 days, which is less than one full half-life, you can use the formula: remaining amount = initial amount * (1/2)^(time/half-life).

So, the amount remaining after 5 days would be:

Remaining amount = 1000 grams * (1/2)^(5/6) = 610.35 grams.