Final answer:
After two half-lives, which in this case is 32 days, a radioactive substance will have a quarter of its original quantity remaining. Therefore, from 88 grams of radioactive vanadium, 22 grams will remain after 32 days.
Step-by-step explanation:
If you have 88 grams of a radioactive kind of vanadium with a half-life of 16 days, after 32 days, which is two half-lives, you will have a quarter of the original amount left. After the first half-life (16 days), the amount will be halved to 44 grams. After the second half-life (another 16 days, totaling 32 days), the amount will be halved again, leaving you with 22 grams.