Cov pa roj carbon atoms hauv alkanes yog sp3-hybridized, thiab muaj cov duab tetrahedral, nrog cov atoms sib txuas ntawm cov ces kaum ntawm 109.5 ° rau ib leeg.
Yuav ua li cas lub kaum sab xis ua alkenes muaj?
Ob-bonded carbons yog sp2-hybridized, thiab muaj trigonal planar duab, nrog sib koom atoms ntawm kaum 120 ° rau ib leegKev sib hloov pub dawb tsis tuaj yeem nyob ib puag ncig carbon-carbon ob daim ntawv cog lus hauv alkenes, ua rau cov saw hlau tsis hloov pauv thiab "floppy" dua li cov alkanes nrog tib tus lej ntawm carbons.
Dab tsi yog daim ntawv cog lus ntawm alkanes?
Alkanes. Alkanes, los yog saturated hydrocarbons, tsuas muaj ib leeg covalent bonds ntawm carbon atoms . Txhua ntawm cov pa roj carbon atoms hauv ib qho alkane muaj sp3 hybrid orbitals thiab yog sib koom ua ke rau plaub lwm atoms, txhua tus yog carbon los yog hydrogen.
Vim li cas daim ntawv cog lus kaum 180?
Yog tias ib lub molecule tsuas muaj ob lub atoms xwb, ob lub atom no nyob rau hauv ib txoj kab ncaj nraim thiab yog li tsim ib cov kab molecule. …Rau ob lub huab no kom deb deb ntawm ib leeg li qhov ua tau, lawv yuav tsum nyob rau sab nraud ntawm lub hauv paus atom, ua ib lub kaum sab xis ntawm 180 ° nrog ib leeg.
Vim li cas daim ntawv cog lus cov kaum hauv alkenes 120?
Cov duab ntawm alkenes
Lub geometry nyob ib ncig ntawm txhua cov pa roj carbon atom yog raws li ib tug trigonal planar duab, vim txhua carbon muaj peb electrons nyob ib ncig ntawm nws. Qhov no yuav tsum ua lub kaum sab xis ntawm txhua daim ntawv cog lus 120.
