The half life of At-210 is 8 hours. It is the most stable isotopes of Astatine.
ID: 590875 • Letter: T
Question
The half life of At-210 is 8 hours. It is the most stable isotopes of Astatine. How much of a 5.00 mg sample would remain at the end of 1 day? A. 4.59 mg B. 0218mg C. 0.625 mg D. 1.60 mg The half life of At-210 is 8 hours. It is the most stable isotopes of Astatine. How much of a 5.00 mg sample would remain at the end of 1 day? The half life of At-210 is 8 hours. It is the most stable isotopes of Astatine. How much of a 5.00 mg sample would remain at the end of 1 day? The half life of At-210 is 8 hours. It is the most stable isotopes of Astatine. How much of a 5.00 mg sample would remain at the end of 1 day? A. 4.59 mg B. 0218mg C. 0.625 mg D. 1.60 mgExplanation / Answer
C. 0.625 mg
Half life of At-210 = 8 hours
Number of half lifes = 24 / 8 = 3
Initial amount = 5.00 mg
final amount remain after 1 day = (1/2)3 x 5.00 = 0.625 mg
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