Technetium

Technetium Technetium is a very interesting element. It was the first element that was produced in a laboratory setting using another element. Each isotope of technetium is radioactive and decays which produce a new element. Technetium is not found naturally on Earth, but tiny amounts have been found in certain stars. The element is classified as a transitional metal. Technetium got its name from the Greek word technetos meaning artificial. There had been a gap between molybdenum (element 42) and ruthenium (element 44). Dmitri Mendeleev predicted where the element would fit into the periodic table. He predicted this element would be chemically similar to manganese and his prediction would later be proved to be correct. Many thought they…

Technetium There are quite a few elements on the periodic table, but some are more special than others. For instance, Technetium, is special because it is the first radioactive element. Since it was the first radioactive element, it is known to be one of the most interesting on the periodic table. Technetium is a silver like metal that will tarnish in moist air slowly. Nitric acid, aqua regia, and conc. sulfuric acid will dissolve this metal, though it will not dissolve in hydrochloric…

because these problems would often go untreated until much later in their development since they would not be picked up by X-rays. The branch of medicine that uses radioisotopes for research, diagnosis and treatment of disease is called nuclear medicine. The most commonly used radioisotope worldwide is technetium-99m. The ‘m’ in its name stands for metastable. Although all isotopes of technetium are radioactive and its most common isotope is Tc-98, the metastable isotope is most desired –…

Each year, roughly 25 million procedures are carried out using technetium 99m (Tc-99m) and around 80% of all nuclear medicine procedures involve Tc-99m. (IAEA, 2008). However, many people don’t realise that our advancement into this modern age of radioisotopes is all thanks to the radioactive element uranium. First used to produce the destructive Hiroshima bomb during World War 2, uranium is now used to create the commonly used radioisotope Tc-99m and many other radioisotopes. Tc-99m is used in…

the mid 1920’s when George de Hevesy administered radionuclides to lab rats. Introducing these radionuclides displayed metabolic pathways between substances within the rats. These reactions were called tracers. Frederic and Irene Joliot-Curie were the first to experiment with artificially produced radionuclides. By irradiating foil with polonium artificial radioactivity was created. The work done by the Joliot-Curie’s was later built upon by other scientists such as Roentgn, who invented the…

Phosphorus. The Silicon which was exposed to radiation is sliced into chips, used for a variety of advanced computer applications. This process increases the efficiency of electrical conductivity in the silicon which is an essential feature for the electronics industry (including; video cameras, and air conditioning units). The reaction is as follows: Medical radioisotopes are also created at ANSTO, Technetium-99m is the most important, since it is used in 80% of nuclear medical scans,…

I read the book A Tale of Seven Elements by Eric R. Scerri. This book was published on June 20 of 2013 by Oxford University Press, USA and it contains 270 pages. A Tale of Seven Elements is a non fiction chemistry book. Overall this book talks about how seven elements - protactinium, hafnium, rhenium, technetium, francium, astatine and promethium - were discovered. These elements are referred to him as infra-uranium elements. Each element has its own chapter with a description to how it was…

contraindication of contrast media In the radiation they are using many tints , e.g. barium also We are using in the nuclear medicine and it’s called radiopharmaceuticals such as Carbon-11 , Chromium-51 , Fluorine-18FDG , Gallium-87 , Gallium-86 citrate , Technetium-99 , Iodine-123 and Iodine-131 . there are all these different uses pigments have benefits and harm . Firstly , we will talk about Iodine-123 is used to diagnoses the patients . It use for routine scan the time of…

elements that included any molecule that could donate an electron to be shared. Consequently, A Lewis base is any species that donates a pair of electrons to a Lewis acid to form a Lewis adduct. Throughout their work with acids and bases, Lewis taught Seaborg the research method of breaking a big project into small parts; which he later used in the Manhattan Project. Before his research assistantship expired, he began instructing in the chemistry department in 1939. In working with Emilio Segré…

Forensic Anthropology Bone Scans How do bone scans help forensic anthropologist figure out how people died? There are many different bone scans that can help them look at different fractures in the bones.The bone scans can help figure out if the deceased was abused,or brought around drugs. Some types of scans that look at bones are the Skeletal Scintigraphy, Dexa Scan, and a Bone Scan. All of these bone scans are used in different ways to help figure out how people died. “Skeletal…