It decays into bismuth through alpha decay or into polonium through electron capture. Due to the small amounts produced and its short half-life, there are currently no uses for astatine outside of basic scientific research. Number of Stable Isotopes : 0 View all isotope data. Electron Shell Configuration :. Astatine Previous Isotopes Next. The scarcity of astatine makes it an incredibly difficult element to study.
Nevertheless, some researchers think astatine may have uses in treating cancer. Astatine may behave like iodine , which tends to collect in the thyroid gland, according to Chemistry Explained. Astatine may also go to the thyroid, and its radiation could kill cancer cells in the gland. Astatine is one such isotope that could be beneficial to alpha therapy because it has a longer half-life than traditionally used bismuth, and it can be produced in particle accelerators.
Astatine has been studied for this use since at least , according to the authors, and has shown to have promising results, including trials with bone marrow transplants in leukemia patients, stem cell transplantation studies in mice, and in chemotherapy treatments with patients with brain tumors.
The conclusions reached by the researchers shows that using a radioactive isotope, such as astatine, can improve RIT efficiency for treating tumors and other cancers, especially if treatment is started early in the disease.
This method of RIT also has the potential to kill remaining tumor cells that are typically resistant to chemo and radioactive therapy. Live Science. This may of course take decades of research to achieve but chemists have already identified rapid ways to make these astatine complexes and there has even been a small but very promising clinical trial at Duke University in North Carolina, testing astatine radiotherapy in 18 brain tumour patients.
So if astatine does become a successful medicine there's every chance that the rarest element might become surprisingly common. Mark Peplow, telling the tale of the world's rarest element. Well from rare to lethal now and especially if you're a monk.
Valentine admitted that antimony was poisonous. In fact he offered an apocryphal explanation for the name, saying that it derives from anti-monachos, meaning anti-monk in Latin because he once unintentionally poisoned several of his fellow monks by adding it secretly to their food in an attempt to improve their health.
Phil Ball who will be bringing antimony to life for us in next week's Chemistry in its element. I'm Chris Smith, thank you for listening. See you next time. Chemistry in its element is brought to you by the Royal Society of Chemistry and produced by thenakedscientists. There's more information and other episodes of Chemistry in its element on our website at chemistryworld.
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We hope that you enjoy your visit to this Site. We welcome your feedback. Data W. Haynes, ed. Version 1. Coursey, D. Schwab, J. Tsai, and R. Dragoset, Atomic Weights and Isotopic Compositions version 4.
Periodic Table of Videos , accessed December Podcasts Produced by The Naked Scientists. Download our free Periodic Table app for mobile phones and tablets. Explore all elements. D Dysprosium Dubnium Darmstadtium. E Europium Erbium Einsteinium.
F Fluorine Francium Fermium Flerovium. G Gallium Germanium Gadolinium Gold. I Iron Indium Iodine Iridium. K Krypton. O Oxygen Osmium Oganesson. U Uranium. V Vanadium. X Xenon. Y Yttrium Ytterbium. Z Zinc Zirconium. Membership Become a member Connect with others Supporting individuals Supporting organisations Manage my membership. Facebook Twitter LinkedIn Youtube. Discovery date. Discovered by. Dale R. Origin of the name.
The name comes from the Greek 'astatos', meaning unstable. Melting point. Boiling point. Atomic number. Relative atomic mass. Key isotopes. Electron configuration. CAS number. ChemSpider ID. About Astatine With less than one gram present on earth at any given time, radioactive Astatine is the second rarest naturally-occurring element on the periodic table after berkelium , and the rarest of the non-transuranic elements.
General Properties. Physical Properties. Chemical Properties. Discovered By: Dale R. Astatine Isotopes Astatine At has no stable isotopes. Periodic table of the elements, materials science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.
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