2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
In pob zeb diamond, tag nrho plaub sab electrons ntawm txhua carbon atom yog 'localized' ntawm cov atoms hauv covalent bonding. Kev txav ntawm electrons raug txwv thiab pob zeb diamond tsis ua hluav taws xob tam sim no.
4 allotropes ntawm carbon yog dab tsi?
Siv daim ntawv qhia tseeb thiab sib txawv ntawm daim npav ua haujlwm los tshawb txog cov khoom sib txawv thiab siv plaub allotropes ntawm carbon - pob zeb diamond, graphite, graphene thiab buckminsterfullerene.
Puas methane yog ib qho allotrope ntawm carbon?
Methane tsis yog ib qho allotrope ntawm carbon, nws yog hydrocarbon compound nrog cov mis CH4. Ib qho allotrope tsis tuaj yeem yog qhov sib xyaw thiab yog li, methane yog cov lus teb zoo. Lo lus allotrope yog hais txog ib lossis ntau hom tshuaj uas tshwm sim hauv tib lub cev.
Vim li cas pob zeb diamond yog ib qho allotrope ntawm carbon?
Pob zeb diamond yog ua los ntawm ntau 3-dimensional molecules. Tsis yog nyob rau hauv cov khaubncaws sab nraud povtseg ib leeg, cov khaubncaws sab nraud povtseg yog sib koom ua ke thiab tsim kom muaj zog dua tab sis tsis yog cov khoom siv hluav taws xob. Nws tsuas yog tsim tawm ntawm cov pa roj carbon, yog li yog ib qho allotrope ntawm carbon.
Dab tsi yog qhov muaj zog tshaj carbon allotrope?
Cov kws tshawb fawb hauv Vienna tau ua tiav daim ntawv ruaj khov ntawm carbyne, lub ntiaj teb cov khoom muaj zog tshaj plaws. Carbyne yog linear acetylenic carbon - ib tug infinitely ntev carbon saw. Nws tuaj yeem suav hais tias yog ib qho allotropentawm carbon.
Pom zoo:
Nyob rau hauv benzene tag nrho cov carbon yog?
Peb paub tias benzene muaj cov qauv hexagonal nyob rau hauv uas tag nrho cov pa roj carbon atoms yog sp 2 hybridized, thiab tag nrho cov carbon- carbon bonds yog sib npaug ntawm qhov ntev. Raws li qhia hauv qab no, cov seem cyclic array ntawm rau p-orbitals (ib qho ntawm txhua cov pa roj carbon) sib tshooj kom tsim tau rau 6 molecular orbitals, peb daim ntawv cog lus thiab peb cov tshuaj tiv thaiv.
Nyob rau hauv graphite electrons yog localised?
Siv tawm ntawm tus qauv . Nyob rau hauv graphite, txhua carbon yog sp2-hybridized thiab tsim plaub covalent daim ntawv cog lus nrog rau lwm yam C-atoms sib tshooj sab ntse kom muab π-electron huab electron huab Electron huab yog ib txoj hauv kev los piav qhia txog atomic orbital.
Nyob rau hauv uas allotrope ntawm carbon dangling bonds tsis tuaj?
C60 yog daim ntawv ntshiab tshaj plaws ntawm cov pa roj carbon monoxide & nws muaj cov qauv du yam tsis muaj dangling valency. Qhov twg allotrope ntawm carbon tsis muaj dangling daim ntawv cog lus? Fullerene tsuas yog daim ntawv ntshiab ntawm cov pa roj carbon monoxide raws li nws muaj cov qauv du tsis muaj dangling bonds.
Leej twg detering nyob rau hauv tag nrho cov nyob ntsiag to nyob rau sab hnub poob pem hauv ntej?
Detering yog tus neeg ua liaj ua teb los ntawm Txhua Tus Neeg Tsis Txaus Siabntawm Sab Hnub Poob los ntawm Erich Maria Remarque. Nws muaj siab mos siab muag, tshwj xeeb tshaj yog thaum nws los txog rau nees. Nws muaj kev kub ntxhov loj heev thaum nws hnov cov nees quaj thiab txawm sim tua lawv kom kawg lawv txoj kev txom nyem.
Puas yog tag nrho cov neeg zoo tag nrho narcissists?
Narcissist yeej muaj peev xwm nqa tau cov yam ntxwv ntawm kev ua tau zoo heev, xav tswj txhua yam, xav kom lawv lub ntiaj teb nyob rau hauv kev txiav txim zoo, tab sis tsis yog txhua tus narcissist, qee qhov kev tsis sib haum xeeb tib yam uas ib tug neeg tuaj yeem ua tau zoo heev thiab txawm tias tej zaum ntau dhau lawm, xav tau yam nyob hauv … Puas yog perfectionism ib daim ntawv ntawm narcissism?
