Txij li thaum nws tau pom thawj zaug hauv xyoo 1940, astatine tau xav tias yog qhov tsawg tshaj plaws ntawm txhua yam tshwm sim hauv ntiaj teb. … Zoo, yog vim tsis muaj leej twg tau pom astatine.
Astatine tuaj yeem pom qhov twg?
Astatine tsuas pom tau ntawm lub ntiaj teb tom qab kev lwj ntawm thorium thiab uranium. Nws kwv yees tias tsawg dua 30 g ntawm astatine muaj nyob hauv lub ntiaj teb, tsuas yog ob peb µg ntawm astatine tau tsim tawm los txog tam sim no, thiab lub ntsiab lus astatine tseem tsis tau pom los ntawm qhov muag liab qab vim nws tsis ruaj khov.
Ntau npaum li cas astatine tau pom?
Astatine yog lub ntsiab lus tsawg tshaj plaws hauv ntiaj teb; tsuas yog kwv yees li 25 grams tshwm sim ib txwm nyob hauv ntiaj teb txhua lub sijhawm. Nws lub neej tau kwv yees nyob rau xyoo 1800, tab sis thaum kawg tau tshawb pom txog 70 xyoo tom qab.
Puas yog astatine tseem tab tom tshawb fawb?
Cov kws tshawb fawb ntawm CERN's ISOLDE qhov chaw tau ua tiav ntsuas cov hluav taws xob sib txuas ntawm astatine, qhov tsis tshua muaj tshwm sim hauv ntiaj teb. … Qhov tsis muaj kev tshawb fawb ib puag ncig astatine yog vimrau nws qhov tsis muaj nyob hauv ntiaj teb. Astatine feem ntau tuaj yeem pom tom qab kev lwj ntawm thorium thiab uranium.
Vim li cas astatine tsawg tsawg?
Raws li cov txiv neej ntawm Quarks mus rau Quasars, uas tau ua qhov zoo tshaj plaws infographic saum toj no, astatine yog qhov tsis tshua muaj tshwm sim uas tsis yog lub ntsiab lus transuranic. …"Vim covCov ntsiab lus transuranic muaj ib nrab lub neej luv dua li lub hnub nyoog ntawm peb lub ntiaj teb, "hais tias Los ntawm Quarks mus rau Quasars.
