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I WILL GIVE BRAINLYEST!!!!!!!.
One scientist kept 20 grams of a radioactive material in a container. What will be the mass of the radioactive material left in the container after 2 half lives? (10 points)
Group of answer choices

4 grams

5 grams

10 grams

40 grams

Sagot :

eidmariam67
I think it is 10 grams
Hope this help you?!

Answer:

It's 5 grams

Explanation:

After 2 half lives that would mean a quarter of the original, because one half times one half is one fourth. 20 times one fourth is 5 grams.

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