Isotopes of carbon. Illustration showing three isotopes of carbon: carbon-12, carbon-13 and carbon-14. Isotopes are forms of an element that contain d Stock Photo - Alamy
Why are carbon-12, carbon-13, and carbon-14 considered isotopes of one another? - brainly.com
Global Monitoring Laboratory - Carbon Cycle Greenhouse Gases
Carbon-14 Dating (Radiocarbon Dating)
Evidence About Earth's Past (Book): - Isotopes | Learnbps