Titlebook: At Astatine; Klara Berei,Siegfried H. Eberle,László Vasáros,Han Book 1985Latest edition Springer-Verlag Berlin Heidelberg 1985 Francium.Is

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-Adic Model for Population Growthndent existence. Isotopes of At occur naturally in both the 4n + 2 (.U) and the 4n + 3 (.U) decay chains. .At, a member of the artificial 4n + 1 (.Np) series, has also been detected in natural materials.

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Is the Lung an Optimal Gas Exchanger? This reaction yields At isotopes with half-lives measured in hours, whereas the longest-lived At isotope in nature is 0.9-min .At. Not surprisingly, .At is also the only naturally occurring At isotope ever isolated by chemical means.

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Book 1985Latest editioneighable" amounts of the element. This implies that all available data on physics and chemistry of this element are 12 16 based on experiments on the tracer scale with 10- to 10- g - and this will also not change in future because no longer-Lived isotopes as yet known are to be expected. Due to the

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with . . weighable" amounts of the element. This implies that all available data on physics and chemistry of this element are 12 16 based on experiments on the tracer scale with 10- to 10- g - and this will also not change in future because no longer-Lived isotopes as yet known are to be expected. D

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