Question

The half-life of carbon-14 is roughly 5,700 years. In the pre-industrial atmosphere, there was approximately one atom of carbon-14 for every trillion atoms of carbon-12. In a fossil that is 17,100 years old, how many atoms of carbon-12 would there be for every atom of carbon-14? Approximately

Select one:

a. three trillion

b. one trillion

c. four trillion

d. eight trillion

e. two trillion

Answer 1

Answer- The correct option is A that is three trillion because in 17100 years there must be 3 times the current carbon 14 and carbon 12 molecules.