document.write( "Question 817371: The half-life of radioactive radium (226 Ra) is approximately 1620 years. How much of a 10gram sample will remain after 1000 years?\r
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Algebra.Com's Answer #492033 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "The half-life of radioactive radium (226 Ra) is approximately 1620 years. 
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document.write( ".5  =  ,   = k,  k = .00043 
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document.write( "How much of a 10 gram sample will remain after 1000 years?
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