Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A highly unstable radioactive element, the heaviest of the halogen group, that resembles iodine in solution. Its longest lived isotope has a mass number of 210 and has a half-life of 8.3 hours. Atomic number 85; melting point 302°C; boiling point 337°C; valence probably 1, 3, 5, 7. cross-reference: Periodic Table.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A highly
radioactive chemical element (symbol At), one of the halogens, withatomic number 85.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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In collaboration with Traude Cless-Bernert, she discovered the natural occurrence of isotopes of astatine by observation of their radioactive alpha particle decays.
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October 19, 2007 at 2:43 pm astatine, u sound likes amayzin purrson.
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The other halogens are: fluorine, an extremely reactive gas; chlorine, a reactive, heavy gas; iodine, a relatively inactive solid; and astatine.
Bromine 2007
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March 25th, 2009 at 5: 25 pm health small group tri pembroke pines florida says: health small group tri pembroke pines florida … astatine hailstorm unpacked treating found …
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Professor Perrier the element technetium, together with Corson and Mackenzie the element astatine, and together with Kennedy,
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He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.
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He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.
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He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.
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He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.
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He controls every aspect of my life at once, from what to wear to whether I may the bathroom astatine work to when I may eat at.
oroboros commented on the word astatine
Can be spelled with the Periodic Table of Elements symbols: AsTaTiNe
December 12, 2006
oroboros commented on the word astatine
At.
December 16, 2007