Astatine - Wikipedia It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8 1 hours
Astatine Facts - The Rarest Natural Element Astatine (At) is a rare and highly radioactive element with atomic number 85 It is part of the halogen group (Group 17) in the periodic table, which also includes fluorine, chlorine, bromine, and iodine Unlike the other halogens, astatine has no stable isotopes
Astatine - Element information, properties and uses | Periodic Table A mass spectrometer has been used to confirm that astatine behaves chemically like other halogens, particularly iodine Astatine has no known biological role It is toxic due to its radioactivity Astatine can be obtained in a variety of ways, but not in weighable amounts
Astatine - Wikiwand It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8 1 hours
Astatine - New World Encyclopedia Astatine (chemical symbol At, atomic number 85) is the rarest naturally occurring chemical element It is a member of the halogen family of elements and is the heaviest halogen Its chemical properties appear to resemble those of iodine
Element: Astatine — Periodic table Astatine is a chemical element; it has symbol At and atomic number 85 It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements
Astatine (At) Element: Properties, Hazard, Uses - Science Info Astatine is a chemical element with an atomic number of 85 and is represented by the symbol ‘At’ in the periodic table Its appearance is unknown classified as metal and belongs to the p-block of group 17 of the periodic table
Understanding Astatine: The Rarest Halogen Element Explore the fascinating world of Astatine, the rarest and most radioactive member of the halogen group Discover its historical background, physical and chemical properties, and its potential uses in medicine and research Learn why this enigmatic element continues to intrigue scientists