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Answers 25-26 KCS18 Chemistry IC Half-LifeQuestion 10

10

QuizMultiple Choice

Half-Life

Question 10 of 10 • *25-26 KCS18 Chemistry IC

A sample contains 10.5 g of the radioisotope Pb-212 and 157.5 g of its daughter isotope, Bi-212. How many half-lives have passed since the sample originally formed?

Answer

A

4

B

14

C

15

D

147.5

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Half-Life - Question 10 | 25-26 KCS18 Chemistry IC | Revolt