Max kept 100 grams of radioactive iodine in a container. He observed the amount of iodine left in the container after regular intervals of time and recorded them in the table shown below.

Question

anonymous · Answer

Time (days)

Amount of iodine in container (in grams)


0 100 
8 50 
16 25 
24 12.5 

 Based on the observations, which of these is most likely Max's inference?

anonymous · Answer

Which of these what?

anonymous · Answer

The amount of radioactive iodine decreases by 50% every 8 hrs.  Therefore its half-life is 8 hrs.

anonymous · Answer

I Got It Thank You(: