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If a radioactive sample starts with 100 g, how many grams of the original substance will be left after 5 half-lives? Please show all work.

Respuesta :

Answer:

3.125g

Explanation:

100/2
50   1
50/2
25    2
25/2
12.5   3
12.5/2
6.25   4
6.25/2
3.125g   5