3 years ago

Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how

Mathematics

1 answer:

irakobra [83]3 years ago

3 0

Answer:

C). 0.39 grams

Step-by-step explanation:

First find how many half-lifes are in 3 hours:

3 hours ÷ 20 minutes = 9 half-lifes

Find the total left:

0.5^9*200 ≈ 0.39

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