The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with
180
grams of a radioactive isotope, how much will be left after
6
half-lives?

Question

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 
180
 grams of a radioactive isotope, how much will be left after 
6
 half-lives?

anonymous · Answer

@JFraser

anonymous · Answer

You don't need to use a formula, but you can.

Divide the initial amount by 2. Then divide that by 2 again. Do this 6 times altogether to get your answer,

anonymous · Answer

oh ok I have another question similar to this one now so I'll give it a try