The Radioactive Element Polonium Decays According to the Law

question 86

Multiple Choice

The radioactive element polonium decays according to the law where is the initial amount and the time t is measured in days. If the amount of polonium left after 560 days is 40 mg, what was the initial amount present?

• A) The initial amount was 642 mg
• B) The initial amount was 640 mg
• C) The initial amount was 635 mg
• D) The initial amount was 629 mg

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