Radioactive iodine (131-I) has a half life of 8 days. How long does it take for iodine to be reduced by factor of 100?
The Attempt at a Solution
Now I'm stuck. I would think to to take the ln of both sides, but there isn't any values given for N(t) or N(o). Also, the value of k I'm pretty sure is right...Any confirmation on this?
Thanks alot for your help :)