Video: Qhov twg muaj lub kaum sab xis ntau dua nh3 lossis nf3?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov NH3 daim ntawv cog lus yog 107°. Cov NF3 kev sib tw yog 102°. Muaj ntau distortion tshaj rau NH3 vim ib leeg daim ntawv cog lus tab tom noj chav tsawg dua, ze rau cov nitrogen. Fluorine yog electronegative ntau dua hydrogen thiab cov electron ceev hauv N-F daim ntawv cog lus Nws raug xa mus rau fluorine.
Tib neeg kuj nug, vim li cas daim ntawv cog lus lub kaum sab xis hauv nh3 siab dua nf3?
Qhov no ua rau muaj kev nce ntxiv hauv cov daim ntawv cog lus ntawm NH3 tab sis hauv NF3 tus daim ntawv cog lus khub nyiam mus rau Fluorine atom, (terminal atoms). Qhov kev ncua deb b/w electronpairsincrease thiab li no, repulsion txo. Yog li ntawd, NF3 muaj tsawg dua daim ntawv cog lus . Thaum lub daim ntawv cog lus ntawm PH3 isless tshaj yog pf3.
Ib yam li ntawd, qhov twg ntau dua polar nh3 lossis nf3? Dipole lub sij hawm ntawm NH3 yog siab dua NF3 Ob qho tib si molecules muaj pyramidal zoo nrog ib leeg ntawm electrons ntawm nitrogen atom. Muaj qhov sib txawv ntau dua inelectronegativity ntawm nitrogen thiab hydrogenthanthere yog nruab nrab ntawm nitrogen thiab fluorine.
Tib neeg kuj nug, qhov twg muaj lub kaum sab xis siab tshaj?
Cov daim ntawv cog lus ntawm CH4 yog 109.5degree. Li no piv rau CO2 muaj qhov siab kawg ntawm daim ntawv cog lus ntawm peb yam khoom no.
Qhov twg yog electronegative nh3 lossis nf3?
Tab sis, NH3 muaj ntau dipole lub sij hawm NF3 . Hauv NH3 , N yog ntau electronegative dua li H. So, N rub cov electrons los ntawm H ntawm nws tus kheej thiab yog li, txoj kev taw qhia ntawm lub sijhawm vim N-H daim ntawv cog lus yog nyob rau hauv tib txoj kev uas ntawm ib leeg ib khub ntawm electrons ntawm Nitrogen.
Pom zoo:
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