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The Half Life of the Radium Isotope Ra-226 Is Approximately

Question 42

Multiple Choice

The half life of the radium isotope Ra-226 is approximately 1,599 years.If the amount left after 1,000 years is 1.8 g, what is the amount after 2000 years? Round your answer to
Three decimal places.


A) 1.167 g
B) 0.939 g
C) 1.800 g
D) 0.490 g
E) 2.334 g

Correct Answer:

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