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

Question 1

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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