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If the half-life of a radioactive substance is 500 million years and you have 48 atoms of it, how many half-lives will have passed by the time that 6 atoms of the substance remain?

O A. 3
O B. 2
O C. 4
O D. 5

User Kiky
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1 Answer

6 votes

Answer: 3

Step-by-step explanation:

User Mohammad Fazeli
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