Question

question 20 of 25
testing shows that a sample of wood from an artifact contains 50% of the original amount of carbon - 14. given that the half - life of carbon - 14 is 5730 years, how old is the artifact?
a. 11,460 years
b. 5730 years
c. 2865 years
d. 22,920 years

Explanation:

Step1: Understand half - life concept

The half - life is the time it takes for half of a radioactive substance to decay.

Step2: Analyze the given situation

The sample contains 50% of the original carbon - 14. This means one half - life has passed.

Answer:

B. 5730 years