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OpenStudy (anonymous):
The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?
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OpenStudy (mayankdevnani):
After 1000 years the 200mg sample will be 137.107 mg. It losses 1mg every 15.9 years. Each year it loose 1/15.9. Multiply this by 1000 and take it from 200.
OpenStudy (mayankdevnani):
ok @torismith
OpenStudy (anonymous):
thank you @mayankdevnani
OpenStudy (mayankdevnani):
welcome
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