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

Multiple Choice

The isotope has a half-life of 24,100 years. After 10,000 years, a sample of the isotope is reduced 1.6 grams. What was the initial size of the sample (in grams) ? How large was the sample after the first 1,000 years? Round your answers to four decimal places.

A) 2.1332 , 2.0727
B) 2.7731 , 2.6945
C) 1.2799 , 1.2436
D) 1.7065 , 1.6582
E) 1.0666 , 1.0364