Cov txheej txheem:
Video: Dab tsi yog cov ntsiab lus f block?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov f thaiv cov ntsiab lus yog cov lanthanides thiab actinides thiab hu ua kev hloov pauv sab hauv cov ntsiab lus vim lawv qhov chaw nyob rau hauv lub sij hawm lub sij hawm vim lawv configurations electron. Cov f orbitals ntawm electronshell yog sau nrog "n-2." Muaj ntau tshaj kaum plaub electrons uas tuaj yeem tuav tau f orbitals.
Ntawm no, D thiab F thaiv cov ntsiab lus yog dab tsi?
Cov d - thaiv cov ntsiab lus hu ua transitionmetals thiab muaj valence electrons nyob rau hauv d cov orbital. Cov f - thaiv cov ntsiab lus , pom nyob rau hauv ob kab nyob rau hauv qab ntawm lub periodic rooj, yog hu ua inner transformation hlau thiab havevalence electrons nyob rau hauv lub f - cov orbital.
Kuj Paub, muaj pes tsawg lub ntsiab lus nyob rau hauv F block? Cov f - thaiv cov ntsiab lus yog koom ua ke los ntawm feem ntau muaj ib lossis ntau dua lawv outermost electrons nyob rau hauv ib f - orbital. Cov f -orbitals tuaj yeem muaj txog li xyapairs ntawm electrons; yog li ntawd, cov thaiv suav nrog kaum plaub kab nyob rau hauv lub sij hawm.
Ntxiv mus, dab tsi yog cov yam ntxwv ntawm F thaiv cov ntsiab lus?
Cov yam ntxwv ntawm F block element-
- Cov ntsiab lus uas lub xeem electron nkag mus rau hauv f subshell ntawm lub plhaub antipenultimate yog f thaiv cov ntsiab lus.
- Kuj hu ua inner transition element.
- Lawv yog cov hlau hnyav.
- Lawv kuj tsim complex ntsev.
- Lawv qhia qhov sib txawv ntawm oxidation xeev.
- Lawv cov tebchaw feem ntau yog xim.
Qhov twg yog qhov kawg ntawm F block?
Nyob ntawm seb lub kawg electron nkag mus rau a4f orbital lossis 5f orbital, lub f – blockelements tau muab faib ua ob series li lanthanides thiabactinides.
Pom zoo:
Lub ntsiab lus ntawm lub hauv paus lo lus meter nyob rau hauv lo lus tus pas ntsuas kub yog dab tsi?
Lub hauv paus chiv keeb ntawm lo lus 'Thermometer' Qhov thib ob ntawm lo lus, 'meter', los ntawm Fabkis -mètre (uas muaj nws cov hauv paus hauv lub post-classical Latin: -meter, -metrumand lub ancient Greek, -Μέτρο ν, lossis metron, uas txhais tau tias ntsuas qee yam, xws li qhov ntev, qhov hnyav, lossis dav)
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