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- 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 | Radioactive Halogen, Uses in Medicine Research - Britannica
astatine (At), radioactive chemical element and the heaviest member of the halogen elements, or Group 17 (VIIa) of the periodic table
- 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
- New Understanding of Astatines Chemical . . . - Texas A M University
Astatine is one of the least-studied elements of the Periodic Table, because all isotopes of astatine are unstable, with the longest half-life barely exceeding 8 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
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