Multiple Choice
Strontium-90 is a byproduct in nuclear reactors fueled by the radioisotope uranium-235. The half-life of strontium-90 is 28.8 yr. What percentage of a strontium-90 sample remains after 175.0 yr?
A) 84.8
B) 1.48
C) 0.230
D) 16.5
E) 6.08
Correct Answer:

Verified
Correct Answer:
Verified
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