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The half-life of cobalt-69 is 6 years. How much of a 5-gram sample is left after 12 years
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The half-life of cobalt-69 is 6 years. How much of a 5-gram sample is left after 12 years

User Dominic Cleal
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Answer:

that was wrong my bad. just delete my answer

Step-by-step explanation:

User Quake
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