Answer:
After 5 half life the amount remains as 3.125 g
Explanation:
After each half life the quantity becomes half
so we know that initial amount is 100 g
so after 1st half life amount is half so it left as
m = 50 g
now after 2nd half life amount again becomes half
m = 25 g
after 3rd half life it is again half so remaining amount is
m = 12.5 g
after 4th half life the amount becomes half again
m = 6.25 g
Now after 5th half life the amount remains as
m = 3.125 g
