Question

based on the reading, what are the properties of carbon - 14? check all that apply. carbon - 14 is a naturally occurring carbon isotope. carbon - 14 has a known half - life. carbon - 14 decays completely within 1,000 years. carbon - 14 is not radioactive. carbon - 14 is present in all living organisms.

Explanation:

Carbon - 14 is a naturally occurring radioactive carbon isotope with a known half - life of about 5730 years. It is present in all living organisms as they take it in during life processes. It does not decay completely within 1000 years.

Answer:

Carbon-14 is a naturally occurring carbon isotope.
Carbon-14 has a known half-life.
Carbon-14 is present in all living organisms.