Question

If you start with 83 grams of manganese-56, how much will remain after 4 half-lives

Answer 1

5.1875 gm

Step-by-step explanation:

during 1st half life it will reduce to 41.5 gm.

during 2nd half life it will reduce to 20.75 gm.

during 3rd half life it will reduce to 10.375 gm.

during 4th half life it will reduce to 5.1875 gm.