与 «ACTINIUM»相关的英语书籍
在以下的参考文献中发现
actinium的用法。与
actinium相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
The History and Use of Our Earth's Chemical Elements: A ...
Characteristics Actinium is the last (bottom) member of group 3 (IIIB) of elements
in the periodic table and the first of the actinide series of metallic elements that
share similar chemical and physical characteristics. Actinium is also closely ...
Actinium trifluoride can be produced either in solution or in solid reaction. The
former reaction is carried out at room temperature, by adding hydrofluoric acid to
a solution containing actinium ions. In the latter method, actinium metal is treated
...
3
The Radiochemistry of the Rare Earths: Scandium, Yttrium, ...
To aqueous layer containing actinium, rare-earth, and other activities add NHjOH
to adjust pH to 5. 5-7. 0. 12. Add 10 ml TTA-benzene. Stir. Recheck pH. Contact
20 minutes . 13. Pipet benzene layer containing actinium and rare earths into ...
Peter Cooper Stevenson, W. E. Nervik, 1961
4
The
Actinium-Uranium Ratio in Colorado Carnotite
This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process.
Fussler Karl Hartley, 2009
5
Chemistry and Analysis of Radionuclides: Laboratory ...
After , the longest-lived isotope of actinium is , which has a half-life of 10 days. It
is the daughter of beta-emitting and is used as a tracer in analyses. Neither nor
its parent occur naturally, but the latter is milked from a generator of artificially ...
Jukka Lehto, Xiaolin Hou, 2011
6
The Chemical News and Journal of Physical Science
I. Radio-actinium. In earlier articles (Berichte, 1904. xxxvii., 1697; 1905, xxxviii.,
778) I have already stated that the artificial barium sulphate precipitates obtained
from emanium solutions retain their activity for many months. Also, I noticed that ...
It was suggested some time ago that actinium is itself the true parent of radium,
but no definite evidence has been brought forward to prove this. The matter has
been under investigation for some time by E. Rutherford, and he gives here a ...
8
The Collected Papers of Lord Rutherford of Nelson
the precipitate produced fresh actinium X and the density rose. The gradual fall of
the activity to a constant value is due to the decay of the excess of the
radioactinium together with its transformation products. The activity curve will be
seen to ...
iso NA half-life DM DE (MeV) DP 225Ac syn 10 d α 5.935 221Fr 226 Ac syn 29.37
h β− 1.117 226Th ε 0.640 226Ra α 5.536 222Fr 227 Ac 100% 21.773 y β− 0.045
227Th α 5.042 223Fr Actinium ( /ækˈtɪniəm/ ak-tin-nee-əm) is a radioactive ...
10
A Glossary of Terms in Nuclear Science and Technology
The compounds of the elements beyond actinium in this state are generally
isostructural with the corresponding ones of actinium and of the lanthanides.
Compare similar usage for thorides, protactinides, and uranides. actinium (Ac) An
...
National Research Council (U.S.). Conference on Glossary of Terms in Nuclear Science and Technology, 1957
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