Which quantity helps determine the absolute age of rocks and fossils?(1 point) And why is that answer true?

Responses

the ratio of protons to neutrons in carbon-14
the ratio of protons to neutrons in carbon-14

the ratio of carbon-12 to carbon-14
the ratio of carbon-12 to carbon-14

the difference between the amounts of carbon-12 and carbon-14
the difference between the amounts of carbon-12 and carbon-14

the difference between the number of protons and neutrons in carbon-14

1 answer

the difference between the number of protons and neutrons in carbon-14

This answer is true because the number of protons and neutrons in an isotope like carbon-14 determines its stability and rate of radioactive decay. By measuring the amount of carbon-14 remaining in a sample, scientists can calculate its age.