1 Answer | Add Yours
Due to C14 half-life, we can date objects that are not older than 60,000 years. The dating method using radioactive isotopes could be extended, however, to other instable chemical elements that have longer half-lifes: potassium-40 (half life of 1.3 billion years), uranium-235 (half life of 704 billion years), thorium (half life of 14 billion years).
We’ve answered 317,364 questions. We can answer yours, too.Ask a question