A student has an 80 g sample of a radioactive material that has a half-life of 20 seconds. How much material will he have left after 60 seconds? A. 10 g B. 20 g C. 40 g D. 5 g

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asked Nov 18, 2022 149k views

1 vote

A student has an 80 g sample of a radioactive material that has a half-life of 20 seconds. How much material will he have left after 60 seconds?

A.
10 g

B.
20 g

C.
40 g

D.
5 g

Physics
high-school

Yvonne Aburrow asked

by Yvonne Aburrow

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1 Answer

7 votes

The answer is C 40 g

Myk Melez answered Nov 22, 2022

by Myk Melez

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