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astatineradioactive element, named 1947, from Greek astatos "unstable" (see astatic) + chemical suffix -ine (2). So called for its short half-life and lack of stable isotopes. "The element appe [..]
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astatine(n) a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
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astatineSymbol:"At" Atomic Number:"85" Atomic Mass: (210)amu. Astatine is a member of the halogen group. This element is often found during reactions with uranium in nuclea [..]
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astatineAstatine. A radioactive halogen with the atomic symbol At, atomic number 85, and atomic weight 210. Its Isotopes range in mass number from 200 to 219 and all have an extremely short Half-Life. Astatin [..]
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astatineAstatine. A radioactive halogen with the atomic symbol At, atomic number 85, and atomic weight 210. Its isotopes range in mass number from 200 to 219 and all have an extremely short half-life. Astatin [..]
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