Question

molecules in all organisms are composed in part of radioactive carbon-14. which statement best explains the presence of carbon-14 in organisms? the radioactive isotope reacts in the same way as stable isotopes in the nuclear reactions in the body. the radioactive isotope reacts in the same way as stable isotopes in the chemical reactions in the body. the radioactive isotope reacts faster than stable isotopes in the nuclear reactions in the body. the radioactive isotope reacts faster than stable isotopes in the chemical reactions in the body.

Answer 1

The answer is the radioactive isotope reacts in the same way as stable isotopes in the chemical reactions in the body.

C-14 and C-12 are carbon isotopes used to measure the approximate age of organic remains. C-12 is stable, and it does not break down into other elements over time. C-14 is not stable. It breaks down into N-14. But, in the body, the radioactive isotope reacts in the same way as stable isotopes in the chemical reactions.