The Isotope Has a Half-Life of 24,100 Years

question 29

Multiple Choice

The isotope has a half-life of 24,100 years. Given an initial amount of 9 grams of the isotope, how many grams will remain after 2,000 years? After 20,000 years? Round your answers to four decimal places.

• A)5.9478 gm, 3.5442 gm
• B)3.3988 gm, 2.0253 gm
• C)8.4969 gm, 5.0632 gm
• D)10.1963 gm, 6.0758 gm
• E)5.0981 gm, 3.0379 gm

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