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Mathematics 14 Online
OpenStudy (anonymous):

A certain radioactive element has a half-life of one hour. If you start with 40.0 grams of the element at noon, how much of the radioactive element will be left at 2 p.m.?

OpenStudy (anonymous):

I GOT 10.0 GRAMS

OpenStudy (cwrw238):

after one hour the amount reduces to 20 g - so after one more hour...

OpenStudy (cwrw238):

yeah

OpenStudy (anonymous):

thanks

OpenStudy (fellowroot):

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