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Strontium-90 Is a Byproduct in Nuclear Reactors Fuelled by the Radioisotope

Question 82

Multiple Choice

Strontium-90 is a byproduct in nuclear reactors fuelled by the radioisotope uranium-235.The half-life Of strontium-90 Is 28.8 y.What percentage of a strontium-90 sample remains after 75.0 y?


A) 68.1
B) 16.4
C) 7.40
D) 38.4
E) 2.60

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