Lexi1615 Lexi1615

22-04-2021
Biology

contestada

Question 9
After 60 days, 100g of a certain element has decayed to only 12.5g.
What is the half-life of this element?
A.) 20 days
B.) 30 days
с.) 8 days
D.)5 days

Respuesta :

badddysafia1 badddysafia1

23-04-2021

30 days I think because I am not so sure

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