mendacity
发表于 2025-3-23 10:16:35
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为宠爱
发表于 2025-3-23 17:18:02
H.F. Jelinek,N. Elston,B. Zietsch of this, most of the data for astatine have been extrapolated or interpolated by various empirical or theoretical treatments from the values determined for the other halogens, or for the neighboring elements of astatine in the Periodic Table. Recent improvements in the theoretical computations have
调整
发表于 2025-3-23 19:34:32
Porous Solid Media (Fractal Surfaces),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
Conspiracy
发表于 2025-3-24 02:15:43
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NAV
发表于 2025-3-24 04:12:39
Theory and Applications of Fractal Topseed 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
Explosive
发表于 2025-3-24 09:24:09
-Adic Model for Population GrowthThe structure of nuclides as well as their decay properties are discussed in many books and monographs, see for instance . Brief descriptions are also found in two volumes of this handbook , which should be consulted for further explanations of special notations used for instance in decay schemes.
institute
发表于 2025-3-24 11:04:29
H.F. Jelinek,N. Elston,B. ZietschAstatine (At), element 85, has no stable isotopes. Its longest-lived isotope, .At, has a half-life of only 8.3 h and a specific activity of 1.8 Ci/µg. Consequently, studies of At chemistry have necessarily been limited to trace levels on the order of 10. to 10. M. General reviews of At chemistry are given by .
躲债
发表于 2025-3-24 17:04:41
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全面
发表于 2025-3-24 22:05:29
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accomplishment
发表于 2025-3-25 02:34:11
Analytical Chemistry of Astatine,Astatine (At), element 85, has no stable isotopes. Its longest-lived isotope, .At, has a half-life of only 8.3 h and a specific activity of 1.8 Ci/µg. Consequently, studies of At chemistry have necessarily been limited to trace levels on the order of 10. to 10. M. General reviews of At chemistry are given by .