Video: Lub sij hawm twg yog californium nyob rau hauv lub sij hawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov no keeb yog ib yam khoom. Californium cais ua ib keeb hauv Actinide series raws li ib qho ntawm "Rare Earth Elements" uas tuaj yeem nyob hauv Pawg 3 cov ntsiab lus ntawm Lub Sijhawm Sijhawm thiab hauv 6 thiab 7th lub sij hawm . Lub Ntiaj Teb Rare Elements yog ntawm Lanthanide thiab Actinide series.
Hauv qhov no, lub sijhawm california yog dab tsi?
Californium Nws yog ib qho khoom siv hluav taws xob hluav taws xob nrog lub cim Cf thiab atomic tooj 98.
| Californium | |
|---|---|
| Lub sijhawm | ntu 7 |
| Thaiv | f-block |
| Element qeb | Actinide |
| Electron configuration | [Rn] 5 f10 7s ib2 |
Ib tug kuj yuav nug, dab tsi yog 7 lub sijhawm ntawm lub rooj zaum? Qhov 7 lub sij hawm ntawm daim ntawv qhia hnub tam sim no muaj plaub yam tshiab: keeb 113 (ib ntus hu ua Ununtrium, lossis Uut), keeb 115 (Ununpentium, lossis Uup), keeb 117 (Ununseptium, or Uus), thiab keeb 118 (Ununoctium, lossis Uuo), hais tias ib pawg kws tshaj lij los ntawm International Union of Pure and Applied Chemistry (IUPAC) thiab
Yog li ntawd, california zoo li cas?
Californium yog ib tug hluavtaws, radioactive keeb tsis pom nyob rau hauv qhov. Nws yog ib qho actinide: ib qho ntawm 15 lub xov tooj cua, nws yog xim hlau pom nyob hauv qab ntawm lub rooj zaum. Cov hlau ntshiab yog silvery-dawb, malleable thiab yog li mos nws tuaj yeem yooj yim hlais nrog rab chais hniav.
Californium tsim li cas?
Californium ua ntej ua 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 yielded lub isotope california -245 uas muaj ib nrab-lub neej ntawm 44 feeb.
Pom zoo:
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