The radioactive iodine (131I) has a half life of eight days. The amount of 0.5 g sample left after 32 days would be:
1
125 mg
2
62.5 mg
3
31.25 mg
4
0.25 g
The radioactive iodine (131I) has a half life of eight days. The amount of 0.5 g sample left after 32 days would be: