Chemistry, 17.01.2020 22:31 anayabeatriz
Polonium-208 is an alpha emitter with a half-life of 2.90 years. how many milligrams of polonium from an original sample of 2.00 mg will remain after 8.00 years? a) 0.147 mg b) 0.296 mg c) 0.725 mg d) 6.77 mg e) 1.90 mg.
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Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
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Polonium-208 is an alpha emitter with a half-life of 2.90 years. how many milligrams of polonium fro...
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