The half-life of the carbon isotope C-14 is approximately 5,715 years.If the amount left after 3,000 years is 1.8 g,what is the amount after 6,000 years? Round your answer to three decimal places.
A)1.251 g
B)1.043 g
C)1.800 g
D)0.604 g
E)2.502 g

Question

The half-life of the carbon isotope C-14 is approximately 5,715 years.If the amount left after 3,000 years is 1.8 g,what is the amount after 6,000 years? Round your answer to three decimal places. ​
A)1.251 g
B)1.043 g
C)1.800 g
D)0.604 g
E)2.502 g

Quizplus · Accepted Answer

The amount of C-14 left after each half-life decreases by half. After 3,000 years, 1.8 g remains. After another 3,000 years (totaling 6,000 years, or approximately one half-life), the amount would halve again, resulting in approximately 1.251 g.

The Half-Life of the Carbon Isotope C-14 Is Approximately 5,715