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A sample of polonium-210 has an initial mass of 390 milligrams (mg). If the half-life of polonium-210 is 36 days, how many mg of the sample remains after 72 days?

A.
392 mg

B.
195 mg

C.
97.5 mg

D.
48.75 mg

User Rojas
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2 Answers

5 votes

Answer:

D

Step-by-step explanation:

I got this question right on my test.

User John Polo
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0 votes

Answer: D. 48.75

Explanation: just took the test

User Gelina
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