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How many half-lives did the rock go through? 4. If a rock had 40 daughter atoms present, how old would the rock be?
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How many half-lives did the rock go through? 4. If a rock had 40 daughter atoms present, how old would the rock be?

User Jordi Vicens
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2 Answers

0 votes
160 should be the right answer
User Amiola
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3.8k points
9 votes
160 I would say hope this helped
User Vinitha
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3.8k points
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