Multiple Choice
Strontium-90 is a dangerous isotope because strontium is chemically similar to calcium and is easily incorporated into bones. Sr-90 has a half-life of 28.1 years. If a person ingests 100 mg of Sr-90, identify the amount that is left in the person's body after 56.2 years.
A) 75.5 mg
B) 50 mg
C) 25 mg
D) 12.5 mg
Correct Answer:
Verified
Correct Answer:
Verified
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