Sironiium-90 is one of the products of the fission of
Chapter 20, Problem 65AP(choose chapter or problem)
Sironiium-90 is one of the products of the fission of uranium-235. This strontium isotope is radioactive, with a half-life of 28.1 years. Calculate how long (in years) it will take for 1.00 g of the isotope to be reduced to 0.200 g by decay.
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