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July 30, 2015

Homework Help: Science

Posted by Angie on Wednesday, April 15, 2009 at 11:47pm.

A material has 32 atoms in all; 24 decayed and the rest undecayed. If the half-life of the radioactive material is 1000 years, what is the age of the material?

a. 1000 years
b. 2000 years
c. 3000 years
d. 4000 years

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