2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Californium yog cov khoom siv hluav taws xob muaj hluav taws xob nrog lub cim Cf thiab atomic tooj 98. Lub ntsiab lus tau tsim thawj zaug hauv xyoo 1950 ntawm Lawrence Berkeley National Laboratory, los ntawm kev foob pob curium nrog alpha hais.
californium nyob qhov twg?
Source: Californium yog cov khoom siv hluavtaws thiab tsis pom nyob hauv ntiaj teb. Lub spectrum ntawm californium-254 tau pom nyob rau hauv supernovae. Californium yog tsim nyob rau hauv nuclear reactors los ntawm bombarding plutonium nrog neutrons thiab nyob rau hauv particle accelerators.
californium nyob qhov twg thawj zaug?
California yog thawj zaug tsim nyob rau xyoo 1950 ntawm Berkeley, California, los ntawm ib pab neeg uas muaj Stanley Thompson, Kenneth Street Jr., Albert Ghiorso, thiab Glenn Seaborg. Lawv ua nws los ntawm kev tua helium nuclei (alpha hais) ntawm curium-242. Cov txheej txheem tau txais cov isotope californium-245 uas muaj ib nrab-lub neej ntawm 44 feeb.
California puas tuaj yeem pom nyob hauv qhov xwm txheej?
Californium yog ib qho khoom siv hluav taws xob, hluav taws xob hluav taws xob tsis pom nyob hauv xwm. Nws yog ib qho actinide: ib qho ntawm 15 cov khoom siv hluav taws xob, cov hlau hlau pom nyob hauv qab ntawm lub rooj zaum.
Cov tshuaj californium muaj nyob hauv dab tsi?
Ob peb lub tebchaw ntawm californium tau tsim thiab kawm. Lawv suav nrog: californium oxide (CfO3) , californium trichloride (CfCl3) thiab californium oxychloride (CfOCl). Californium cov isotope ruaj khov tshaj plaws, californium-251, muaj aib nrab neej ntawm kwv yees li 898 xyoo.
Pom zoo:
Lub sijhawm nws tshawb nrhiav zebulon pike nrhiav?
Zebulon Pike yog ib tug tub rog Asmeskas tub rog thiab tshawb nrhiav uas tau ua haujlwm hauv Tsov Rog xyoo 1812. Thaum nws ntoj ncig, nws tau sim tshawb nrhiav qhov chaw ntawm Mississippi River. Nws txoj kev ntoj ncig pib thaum General James Wilkinson hauv 1805 txiav txim siab xa nws mus nrhiav qhov chaw ntawm tus dej.
Thaum twg tau txais kev pom zoo nrhiav tau?
In 2009, peb tus tsim thiab CEO Steve Marshall tau txheeb xyuas lub sijhawm hauv kev lag luam pov hwm lub neej thiab Reassured tau tsim. Peb pab tsev neeg tiv thaiv qhov tseem ceeb tshaj plaws rau lawv; Peb Lub Hom Phiaj rau 2020 yog los tiv thaiv ntau dua 200,000 tsev neeg hauv tebchaws Askiv.
Tus neeg nrhiav qhov tseeb puas ceeb toom rau tus neeg koj tab tom nrhiav?
Puas yog TruthFinder ceeb toom rau tus neeg koj saib? Koj qhov kev tshawb nrhiav TruthFinder ib txwm yog ntiag tug, yog li tus neeg nug yuav tsis paub tias koj tshawb nrhiav lawv daim ntawv tshaj tawm. Yog TruthFinder tsis qhia npe? rub daim ntawv tshaj tawm ntawm TruthFinder tsis qhia npe, yog li tsis muaj leej twg yuav raug ceeb toom thaum koj ua qhov kev tshawb nrhiav lossis thov daim ntawv qhia rau ib tus neeg tshwj xeeb.
Kuv nrhiav tau daim ntawv xav tau suab nyob qhov twg?
Nrhiav koj cov npe xav tau ntawm lub desktop version ntawm Audible yog qhov yooj yim: Saib cov ntawv qhia zaub mov saum toj kawg nkaus ntawm nplooj ntawv thaum mus saib Audible.com ntawm Mac lossis PC. Koj yuav pom "Xaiv Daim Ntawv"
Puas nrhiav tau lossis nrhiav tau?
Yog li, koj yuav tsum tau siv "could find". Lub modal verb, tau yog twb nyob rau hauv nws paste-form: ua. Yog li koj tsis tas yuav hloov pauv los nrhiav. Yuav nrhiav tau lossis nrhiav tau? "Ntaus" yog sib npaug. "
