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书目名称At Astatine影响因子(影响力)<br> http://figure.impactfactor.cn/if/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine影响因子(影响力)学科排名<br> http://figure.impactfactor.cn/ifr/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine网络公开度<br> http://figure.impactfactor.cn/at/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine网络公开度学科排名<br> http://figure.impactfactor.cn/atr/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine被引频次<br> http://figure.impactfactor.cn/tc/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine被引频次学科排名<br> http://figure.impactfactor.cn/tcr/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine年度引用<br> http://figure.impactfactor.cn/ii/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine年度引用学科排名<br> http://figure.impactfactor.cn/iir/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine读者反馈<br> http://figure.impactfactor.cn/5y/?ISSN=BK0163884<br><br> <br><br>书目名称At Astatine读者反馈学科排名<br> http://figure.impactfactor.cn/5yr/?ISSN=BK0163884<br><br> <br><br>
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Production, Isolation, and Purification of Astatine Isotopes, 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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Handling of Astatine,grè after more than 16 years of intensive search and discussion, cf. e.g. , about 800 publications have been devoted totally or partially to the physical and chemical properties of that element. The majority belongs to the domain of nuclear physics. The 24 isotopes of astatine
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Irradiation and Self-Irradiation of Astatine Compounds,eed that the radiation effects of .At are mainly due to the energetic α particles. For a more detailed treatment of irradiation and self-irradiation effects it is, however, necessary to consider the different kinds of radiation emitted in the decay of .At and .At somewhat more closely. The largest c
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Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th editionhttp://image.papertrans.cn/b/image/163884.jpg
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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.