 Isotopes of technetium

Technetium (Tc) is a chemical element with atomic number 43 and is notable for being the first artificially produced element. It has several isotopes, with the most significant ones being: 1. **Technetium-97 (Tc-97)**: This isotope has a half-life of about 4.2 million years and is one of the more stable isotopes. It is produced in trace amounts in nuclear reactors and is used in some medical applications.