इंग्रजी मध्ये ACTINIUM म्हणजे काय?
अॅक्टिनियम
Actinium एक एसि व अणुक्रमांक 89, जे 18 99 मध्ये शोधले गेले त्याचे प्रतीक असलेले एक किरणोत्सर्गी रासायनिक घटक आहे. हे वेगळे केले जाणारे पहिले नॉन-प्रादेशिक किरणोत्सर्गी घटक होते. ऍसिडिनियमच्या आधी पोलोनियम, रेडियम आणि रेडॉनचे निरीक्षण केले जात होते परंतु 1 9 02 पर्यंत त्यांचे वेगळेपण दिसून आले नाही. अॅक्टिनियमने एरीइनइड सीरीयावर हे नाव दिले आहे, आवर्त सारणीमध्ये एक्टिनियम व लॉरेनॅमीनमधील 15 समान घटकांचे एक गट. एक मऊ, चांदी असलेला पांढर्या किरणोत्सर्गी धातू, अॅक्टिनियम ऑक्सिजन आणि आर्द्रतासह वेगाने प्रतिक्रिया देतो ज्यामुळे ऍक्सीनियम ऑक्साईडची पांढरी कोटिंग बनते जे अधिक ऑक्सिडेशनला प्रतिबंधित करते. बहुतांश lanthanides आणि actinides म्हणून, actinium जवळजवळ सर्व त्याचे रासायनिक संयुगे मध्ये ऑक्सिडेशन राज्य +3 गृहीत धरते आयटीपेप 227एसीच्या रूपाने Actinium केवळ युरेनियम धातू ओरेसच्या ट्रेसमध्येच आढळते, जे 21.772 वर्षांच्या अर्ध जीवनासह नष्ट होते, प्रामुख्याने बीटा कण तयार करणे. एक टन युरेनियम धातूमध्ये अॅक्टिनियमच्या 0.2 मिलिग्रॅम असतात. अॅक्टिनियम व लेथानियमच्या भौतिक आणि रासायनिक गुणधर्मांच्या समरूपतेमुळे अर्क अव्यवहार्यीपासून अॅक्टिनियम वेगळे होते. त्याऐवजी, परमाणु रिएक्टरमध्ये 226Ra च्या न्यूट्रॉन विकिरणाने, घटक तयार होतो, मिलिग्राम राशी मध्ये तयार केले जाते.
इंग्रजी शब्दकोशातील actinium व्याख्या
शब्दकोशात एक्टिनियमची परिभाषा एटीननाइड मालिकेतील एक किरणोत्सर्गी घटक आहे, जी यूरेनियमची झीज उत्पादन करते. हे अल्फा कण स्त्रोत आणि न्यूट्रॉन उत्पादन म्हणून वापरले जाते. प्रतीक: एसी; अणुक्रमांक: 89; सर्वात स्थिर समस्थानिकेचा अर्धा आयुष्य, 227एसी: 21.6 वर्षे; सापेक्ष घनता: 10.07; पिघलविणे: 1051 डिग्री सेल्सिअस; उकळत्या pt: 3200 ± 300 डिग्री सेल्सियस
«ACTINIUM» संबंधित इंग्रजी पुस्तके
खालील ग्रंथसूची निवडीमध्ये
actinium चा वापर शोधा. इंग्रजी साहित्यामध्ये वापराचा संदर्भ देण्यासाठी
actinium शी संबंधित पुस्तके आणि त्याचे थोडक्यात उतारे.
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
नवीन गोष्टी ज्यामध्ये «ACTINIUM» ही संज्ञा समाविष्ट आहे
खालील बातम्यातील आयटमच्या संदर्भात राष्ट्रीय आणि आंतरराष्ट्रीय पत्रकार कशाबद्दल बोलले आहेत आणि
actinium ही संज्ञा कशी वापरली आहे ते शोधा.
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