Multiple Choice
Carbon-11 has a half-life of 20 minutes.Which of the following equations is used to calculate the amount of carbon-11 remaining after 1 hour if the starting material is a 100-mg sample?
A) 100 mg × ½
B) 100 mg/3
C) 100 mg/20
D) 100 mg/20/20/20
E) 100 mg × ½ × ½ × ½
Correct Answer:
Verified
Correct Answer:
Verified
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