Technetium-99

Technetium-99 (Tc-99) is a radioactive isotope of technetium, which is a chemical element with the symbol Tc and atomic number 43. Tc-99 is significant in various fields, particularly in nuclear medicine. ### Properties: - **Half-Life**: Tc-99 has a relatively short half-life of about 6 hours. This means that it decays relatively quickly, which is advantageous for medical applications as it limits the patient's exposure to radiation.