Video: Dab tsi covalent daim ntawv cog lus muaj 2 sib koom electrons?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Covalent bonds tuaj yeem yog ib qho, ob npaug, thiab triple daim ntawv cog lus. Ib daim ntawv cog lus tshwm sim thaum ob lub tshuab hluav taws xob sib koom thiab yog tsim los ntawm ib qho sigma daim ntawv cog lus nruab nrab ntawm ob lub atom. Ob daim ntawv cog lus tshwm sim thaum plaub lub electrons sib koom ntawm ob lub atoms thiab muaj ib qho sigma daim ntawv cog lus thiab ib daim ntawv cog lus.
Raws li kev sib raug zoo, cov khoom siv hluav taws xob twg koom nrog hauv covalent bonds?
A covalent bond , kuj hu ua molecular daim ntawv cog lus , yog ib qho tshuaj daim ntawv cog lus uas koom nrog sib koom ntawm hluav taws xob khub ntawm atoms. Cov no hluav taws xob khub yog lub npe hu ua qhia khub los yog kev sib raug zoo khub, thiab qhov sib npaug ruaj khov ntawm kev txaus siab thiab kev tsis txaus siab ntawm cov atoms, thaum lawv sib koom electrons , yog lub npe hu ua covalent bonding.
Tsis tas li ntawd, puas yog electrons sib koom hauv covalent compounds? Covalent bonding tshwm sim thaum khub ntawm electrons yog qhia los ntawm atoms. Atoms yuav covalently daim ntawv cog lus nrog rau lwm cov atoms nyob rau hauv thiaj li yuav tau txais ntau stability, uas yog tau los ntawm kev ua ib tug tag nrho hluav taws xob plhaub. Los ntawm sib koom lawv sab nrauv feem ntau (valence) electrons , atoms tuaj yeem sau lawv sab nraud hluav taws xob plhaub thiab nce stability.
Tsis tas li ntawd kom paub yog, dab tsi yog tag nrho cov xov tooj ntawm cov hluav taws xob sib koom hauv ob daim ntawv cog lus?
Hauv ib covalent bond ib khub electrons yog qhia nruab nrab ntawm ob lub atoms 'txuas' los ntawm covalent bond . Yog li ntawd a dual covalent bond muaj ob khub ntawm electrons ua qhia , yog in tag nrho plaub electrons.
Yuav ua li cas daim ntawv cog lus yog ua los ntawm kev sib koom electrons?
Ib qho ionic daim ntawv cog lus yog a hom ntawm chemical daim ntawv cog lus tsim los ntawm ib qho electrostatic attraction ntawm ob oppositely them ions. Ionic daim ntawv cog lus raug tsim nruab nrab ntawm ib qho cation, uas feem ntau yog hlau, thiab anion, uas feem ntau yog nonmetal. Ib covalent daim ntawv cog lus koom nrog ib khub ntawm electrons ua qhia nruab nrab ntawm atoms.
Pom zoo:
Yuav ua li cas yog daim ntawv cog lus sib txawv ntawm daim ntawv cog lus ionic?
Qhov sib txawv ntawm cov ionic thiab covalent daim ntawv cog lus yog tias covalent daim ntawv cog lus yog tsim thaum ob lub atoms sib koom electrons. Ionic bonds yog lub zog uas tuav ua ke electrostatic zog ntawm kev nyiam ntawm cov ions oppositely them. Ionic bonds muaj qhov sib txawv electronegativity ntau dua lossis sib npaug li 2
Dab tsi yog qhov txawv ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus dissociation zog?
Qhov sib txawv tseem ceeb ntawm kev sib txuas ntawm lub zog thiab lub zog bonddissociation yog tias lub zog sib txuas yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem tag nrho cov kev sib txuas ntawm tib ob hom atoms nyob rau hauv ib qho chaw sib txuas whereas daim ntawv cog lus dissociation zog yog tus nqi ntawm cov hluav taws xob xav tau los rhuav tshem ib qho kev sib koom ua ke inhomolysis
Puas yog daim ntawv cog lus hydrogen zoo ib yam li daim ntawv cog lus?
Hydrogen daim ntawv cog lus yog lub npe muab rau electrostatic kev sib cuam tshuam ntawm tus nqi zoo ntawm hydrogen atom thiab tus nqi tsis zoo ntawm oxygen atom ntawm ib qho chaw nyob sib ze. Covalent daim ntawv cog lus yog qhov sib cuam tshuam electrostatic ntawm ob lub atom hauv tib lub molecule
Dab tsi yog covalent daim ntawv cog lus rau dummies?
Environmental Science For Dummies Thaum ob lub atoms sib koom ua ke hauv cov ntawv cog lus, lawv tsim cov molecule uas sib koom electrons. Tsis zoo li nyob rau hauv daim ntawv cog lus ionic, ob qho tib si ntawm cov atoms hauv covalent daim ntawv cog lus poob lossis tau txais ib qho hluav taws xob; Hloov chaw, ob lub atoms siv ib khub ntawm cov electrons sib koom
Puas yog Co muaj daim ntawv cog lus covalent?
Cov pa roj carbon monoxide yog hetero nuclear diatomic molecule. Nws yog ib tug polar covalent molecule raws li qhov sib txawv electronegativity ntawm oxygen thiab carbon yog ntau dua 0.4, li no, tsim ib tug polar covalent daim ntawv cog lus