Video: Puas yog cf4 yog tetrahedral?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li koj hais, lub CF 4 yog symmetrical ( tetrahedral , tsis yog planar), yog li tsis muaj net polar moment. Cov molecules zoo kawg nkaus symmetrical, yog li txhua tus electron khub ib leeg fluorine tshem tawm cov electron khub ntawm txhua lwm fluorine. Vim li no, cov molecule no tsis yog polar.
Ntawm no, dab tsi yog geometric duab ntawm cf4?
10.36 (ib.) CF 4 : Hluav taws xob geometry - tetrahedral; molecular geometry -tetrahedral; khi lub kaum sab xis = 109.5 ° Kos ib Lewis qauv rau themolecule: muaj 32 valence electrons.
Ib yam li ntawd, vim li cas cf4 molecule nonpolar? Hauv cov qauv zoo sib xws (piv txwv li, CO2 lossis CF 4 ), tus neeg daim ntawv cog lus dipoles zoo tshem tawm ib leeg thiab cov molecule yog tsis-polar. Nyob rau hauv tsawg symmetricalstructures (piv txwv li, SO2 thiab SF4), daim ntawv cog lus dipoles tsis tso tseg thiab muaj ib tug net dipole lub sij hawm uas ua rau lub molecule polar.
Ib yam li ib tug yuav nug, hom molecule yog cf4?
CF 4 yog tetrahedral, yog li koj tuaj yeem xav txog nws zoo ntawm spherically balanced. Txij li thaum plaub F atoms muaj qhov tseem ceeb ntawm electronegativity, tsis muaj kev cuam tshuam hauv electrondistribution rau ib qho twg. Yog li ntawd, electron / chargedistribution yog symmetrical, uas kuj txhais tau tias cov molecule yog nonpolar.
Puas yog nf3 tetrahedral?
Hauv NF3 kuj muaj peb daim ntawv cog lus, tab sis cov nitrogen muaj ib leeg ib leeg. Plaub khub ntawm electronsarrange lawv tus kheej tetrahedrally , tab sis cov lus piav qhia ntawm cov duab tsuas yog siv tus account ntawm cov atoms. NF3 yog pyramidal. Inmethane, plaub daim ntawv cog lus tau sib nrug deb li qhov ua tau hauv a tetrahedral kev npaj.
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