Thaum ob lub atoms sib koom ua ke, qhov sib txawv ntawm lawv cov electronegativities tuaj yeem qhia koj txog qhov zoo ntawm lawv daim ntawv cog lus. Tshem tawm qhov me me electronegativity los ntawm qhov loj dua kom pom qhov txawv.
Vim li cas peb yuav tsum nkag siab qhov sib txawv ntawm electronegativity?
Tsis muaj qhov sib txawv ntawm electronegativity ntawm ob lub atoms ua rau cov nyiaj tsis muaj polar covalent. Qhov sib txawv me me ntawm electronegativity ua rau muaj qhov sib txawv ntawm cov khoom sib txuas. Ib qho loj electronegativity sib txawv ua rau ib daim ntawv cog lus ionic.
Txoj cai rau electronegativity yog dab tsi?
Txoj cai yog thaum qhov sib txawv ntawm electronegativity ntau dua 2.0, daim ntawv cog lus suav tias yog ionic. Yog li, cia peb tshuaj xyuas cov cai: 1. Yog tias qhov sib txawv ntawm electronegativity (feem ntau hu ua ΔEN) tsawg dua 0.5, ces daim ntawv cog lus yog nonpolar covalent.
Thaum qhov sib txawv ntawm electronegativity ntawm ob lub atoms ua rau ua rau lub zog ntawm daim ntawv cog lus dipole?
Bond dipole moment
Lub atom nrog loj dua electronegativity yuav muaj ntau rub rau bonded electrons dua li lub atom nrog me electronegativity; Qhov ntau dua qhov sib txawv ntawm ob lub electronegativities, qhov loj dua lub dipole.
Puas yog ionic bonds ntau dua electronegative?
Qhov sib txawv ntawm electronegativity ΔEN ntawm cov atoms hauv daim ntawv cog lus ionic yuav tsum yog ntau dua 1.6. Bonds tsis muajelectronegativity. … Qhov sib txawv ntawm cov electronegativities ntawm cov atoms txiav txim siab ionic cim ntawm daim ntawv cog lus. Bonds muaj li ntawm 100% covalent mus rau 100% ionic, nrog txhua tus nqi ntawm.
