Molybdenum is one of the heaviest elements on the periodic table, and its radioactive isotopes also have high atomic masses. Molybdenum-99 (99Mo) is the most common radioactive isotope of molybdenum and is widely used in medicine. It is used in medical radioactive isotope generators to produce other radionuclides.
The radioactivity of molybdenum-99 is due to the presence of one electron in the outer level, which leads to its high stability and ability to undergo radioactive decay. Molybdenum-99 has a half-life of 65.5 seconds, making it one of the fastest decaying radioactive isotopes in nature.
Molybdenum-100 (100Mo) is also a radioactive isotope, but its half-life is about 3.8 days. Molybdenum-101 and molybdenum-102 are also radioactive isotopes, but their half-lives are much shorter than molybdenum-103.
In medical practice, molybdenum is used to produce various radionuclides, such as technetium-99m (99mTc), which is used in nuclear medicine for imaging various organs and tissues. Molybdenum can also be used to produce other medical radionuclides with longer half-lives, such as molybdenum-54 (54Mn), which can be used in cancer therapy.
Although molybdenum is safe for medical use, precautions must be taken when working with radioactive substances. For example, it is necessary to use protective suits and masks to protect against radiation, and to ensure that radioactive substances do not enter the environment.
Molybdenum radioisotopes are the general name for a large group of isotopes of the element molybdenum (Mo) that are relatively highly radioactive compared to naturally occurring isotopes of the element. Isotopes of this type are divided into two categories: Tb radioisotopes (thorium-containing), which emit secondary beta radiation (X-ray), and Sb isotopes, which have gamma radiation or intranuclear transitions. Radioisotopes of molybdenum are used in medicine. Used 99Mo along with 99m