Answer :
Final answer:
Approximately 6.25% of the sample of 20F will remain after 44 s have elapsed.
Explanation:
The fraction of a sample of 20F remaining after 44 s have elapsed can be calculated using the concept of half-life. The half-life of 20F is 11 s, which means that after every 11 s, half of the sample will decay. Since 44 s is equal to 4 half-lives of 20F (44/11), we can calculate the fraction remaining using the equation:
Fraction remaining = (1/2) ^ (number of half-lives)
Substituting the value of 4 for the number of half-lives, we get:
Fraction remaining = (1/2) ^4 = 1/16 = 0.0625
Therefore, approximately 6.25% of the sample of 20F will remain after 44 s have elapsed.
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