Yuav ua li cas koj txiav txim siab yog tias daim ntawv cog lus yog polar tsis muaj lub rooj electronegativity?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Kauj ruam 2: Txheeb xyuas txhua daim ntawv cog lus uas yog polar los yog nonpolar. ( Yog qhov txawv hauv electronegativity rau atoms hauv a daim ntawv cog lus yog ntau dua 0.4, peb xav txog qhov daim ntawv cog lus polar . Yog qhov txawv hauv electronegativity yog tsawg dua 0.4, lub daim ntawv cog lus yog qhov tseem ceeb tsis muaj polar.) Yog tsis muaj polar bonds , lub molecule yog nonpolar.

Tib neeg kuj nug, polarity xam li cas?

Cov polarity ntawm daim ntawv cog lus tuaj yeem txiav txim siab siv tsuas yog cov txiaj ntsig electronegativity ntawm ob lub hauv paus atom. Yog tias daim ntawv cog lus ntawm ob lub atoms tsis yog polar, piv txwv li qhov sib txawv ntawm electronegativity ntawm ob lub atoms tsawg dua 0.5, ces koj cov molecule yuav tsis-polar.

Kuj Paub, yog dej tsis polar? Dej (H₂O) yog polar vim qhov khoov zoo ntawm cov molecule. Yog vim li cas cov duab ntawm cov molecule tsis linear thiab tsis muaj polar (e.g., li CO₂) yog vim qhov sib txawv ntawm electronegativity ntawm hydrogen thiab oxygen. Tus nqi electronegativity ntawm hydrogen yog 2.1, thaum lub electronegativity ntawm oxygen yog 3.5.

Ntawm no, yog HCL polar lossis nonpolar?

HCL yog a polar molecule li chlorine muaj ntau dua electronegativity tshaj hydrogen. Yog li, nws nyiam cov khoom siv hluav taws xob kom siv sij hawm ntau thaum nws kawg, muab nws tus nqi tsis zoo thiab hydrogen rau qhov zoo. Koj puas paub tias Br2 yog li cas polar los yog nonpolar ?

Vim li cas dej yog polar molecule?

A dej molecule , vim nws cov duab, yog a polar molecule . Ntawd yog, nws muaj ib sab uas tau them nyiaj zoo thiab ib sab uas raug them tsis zoo. Cov molecule yog tsim los ntawm ob lub atom hydrogen thiab ib qho oxygen atom. Cov kev sib txuas ntawm cov atoms hu ua covalent bonds, vim hais tias cov atoms sib koom electrons.