The Half-Life of the Radium Isotope Ra-226 Is Approximately 1,599

question 37

Multiple Choice

The half-life of the radium isotope Ra-226 is approximately 1,599 years.What percent of a given amount remains after 100 years? Round your answer to two decimal places. ​

• A)95.76 %
• B)5.96 %
• C)97.76 %
• D)3.13 %
• E)0.96 %

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