astatine definition | uses of astatine

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astatine definition*******Element Astatine (At), Group 17, Atomic Number 85, p-block, Mass [210]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.The meaning of ASTATINE is a radioactive halogen element discovered by bombarding bismuth with alpha particles and also formed by radioactive decay.a chemical element that is radioactive and is the rarest natural element on the Earth's surface: The properties of astatine remain a mystery. Fewer examples. The lowest .

Astatine is a radioactive element. It is a semiconductor and can have metallic properties. Astatine undergoes sublimation but less readily than iodine and have a low vapor .Symbol: At; atomic no: 85; half-life of most stable isotope, 210 At: 8.1 hours; probable valency: 1,3,5, or 7; melting pt: 302°C; boiling pt: 337°C (est) astatine. / ăs ′ tə-tēn′ /. A .

Astatine (At), radioactive chemical element and the heaviest member of the halogen elements, or Group 17 (VIIa) of the periodic table. Astatine, which has no stable isotopes, was first synthetically produced (1940) at .astatine. noun [ U ] us / ˈæs.tə.tiːn / uk / ˈæs.tə.tiːn /. (symbol At) a chemical element that is radioactive and is the rarest natural element on the Earth's surface: The properties of .Astatine is a radioactive element that is found in small amounts in nature, and is produced artificially for use in medicine.astatine. Properties of astatine. astatine, Radioactive chemical element and the heaviest halogen element, chemical symbol At, atomic number 85. It was first synthetically produced in 1940 from the bombardment of .astatine definition uses of astatineDefinition of astatine noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. . Astatine is a radioactive element that is found in small amounts in nature, and is produced artificially for use in medicine.

Astatine is the 85th element of the periodic table with a symbol ‘At’. It is a radioactive element and is said to be the most heavier among the halogens. This element exhibits similar chemical properties that of the element iodine. The isotopes of astatine have a short life of about 8.1 hours, and some isotopes are said to be unstable.

astatine: 1 n a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium Synonyms: At , atomic number 85 Type of: chemical element , element any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in .uses of astatine A radioactive element of the halogen series: a decay product of uranium and thorium that.. Click for English pronunciations, examples sentences, video.Definition, mass & chemical names. Astatine. Astatine is a highly radioactive element and the heaviest member of halogen family. It was discovered in 1940. History and Discovery. The existence of astatine was predicted in the halogen family under iodine by Dmitir Mendellev (1869) and by Neild Bohr. However, due to its unstable nature, it was . A typical feature of halogen-bonding interactions, denoted R–X Uses of Astatine. Antistatic Devices: While polonium is used for removing static electricity, astatine’s extreme rarity and shorter half-life make it impractical for such applications. Nuclear Batteries: Astatine isotopes, such as astatine-210, could theoretically be used in nuclear batteries by converting the alpha particles they emit into heat, and .

Definition of astatine noun from the Oxford Advanced American Dictionary astatine noun. noun. NAmE / / ˈæstəˌtin / / [uncountable] (symbol At) jump to other results. a chemical element. Astatine is a radioactive element that is found in small amounts in nature, and is produced artificially for use in medicine.astatine definition D. Scott Wilbur points out the difficulty in studying the transient element astatine, and the need to understand its basic chemical nature to help in the development of targeted radiotherapy agents.ASTATINE definition: 1. a chemical element that is radioactive and is the rarest natural element on the Earth's surface.. Learn more. The determination of the electron binding energy of the astatine anion, i.e., the EA, should help to better understand these reaction kinetics as well as the stability of involved astatine compounds.

Astatine. is a radioactive chemical element. The symbol for Astatine is At and its atomic number is 85. At is the heaviest halogen discovered. It was first produced by Dale R. Corson, Kenneth Ross Mackenzie, and Emilio .

Astatine is the least reactive of the halogen elements and it is assumed to behave similarly to iodine. As it has such a short half-life no crystal structures of its compounds exist and very few compounds have been identified at all. Compounds of astatine with palladium are known and their relatives – palladium iodides – are incredible .

Definition of Astatine Astatine is a radioactive halogen that is found in the periodic table with the atomic number 85. It is a rare element and is known to be the heaviest halogen. The chemical symbol for astatine is At. Due to its unstable nature, astatine undergoes alpha decay, which means it emits alpha particles to become more .

Astatine ( 85 At) has 41 known isotopes, all of which are radioactive; their mass numbers range from 188 to 229 (though 189 At is undiscovered). [2] There are also 24 known metastable excited states. The longest-lived isotope is 210 At, which has a half-life of 8.1 hours; the longest-lived isotope existing in naturally occurring decay chains is .Define astatine. astatine synonyms, astatine pronunciation, astatine translation, English dictionary definition of astatine. n. Symbol At A highly unstable radioactive element, the heaviest of the halogen group, that resembles iodine in .Definition of astatine in the Definitions.net dictionary. Meaning of astatine. Information and translations of astatine in the most comprehensive dictionary definitions resource on the web.astatine n a radioactive element of the halogen series: a decay product of uranium and thorium that occurs naturally in minute amounts and is artificially produced by bombarding bismuth with alpha particles.

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astatine definition|uses of astatine