Compute how long it will take for the isotope

Reference no: EM13170903

Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.500 g of the isotope to be reduced to 0.150 g by decay.

The carbon-14 decay rate of a sample obtained from a young tree is 0.332 disintegration per second per gram of the sample. Another wood sample prepared from an object recovered at an archaeological excavation gives a decay rate of 0.129 disintegration per second per gram of the sample. What is the age of the object?

Reference no: EM13170903

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