Video: Dab tsi ntawm daim ntawv cog lus tuav cov atoms ua ke hauv polyatomic ions?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Covalent bonding yog hom kev sib txuas uas tuav ua ke cov atoms hauv ib qho polyatomic ion. Nws yuav siv ob lub electrons los ua ib qho covalent bond , ib qho ntawm txhua qhov sib txuas atom. Lewis dot qauv yog ib txoj hauv kev los sawv cev li cas atoms tsim covalent bonds.
Ib yam li ntawd, koj ua li cas ua ke polyatomic ions?
Lwm txoj hauv kev los tsim polyatomic ions yog los ntawm ua ke lawv nrog ib lossis ntau dua hydrogen ions , H+. Piv txwv li, peb ua tau ua ke H+ nrog carbonate, CO32- los tsim hydrogen carbonate, HCO3–. Daim ntawv ceeb toom tag nrho cov nqi yog 1- vim tias 1+ ntawm H+ ua ke nrog 2-on CO32-.
Ib tug kuj nug, puas yog cov tebchaw nrog polyatomic ions ionic lossis covalent? Polyatomic ions yog ions . Txawm li cas los xij, cov atoms hauv polyatomic ions tau tuav ua ke los ntawm covalent daim ntawv cog lus. Cov tshuaj muaj polyatomic ions yog ionic compounds . Txoj cai tseem ceeb ntawm tus ntiv tes xoo yog ionic compounds coj qhov chaw ntawm qhov zoo ionic hlau thiab tsis zoo ionic tsis yog hlau.
Dhau li ntawm no, qhov kev sib txuas ntawm cov ntsiab lus twg yuav tsim ib daim ntawv cog lus ionic?
Ib ionic daim ntawv cog lus yog ib hom tshuaj daim ntawv cog lus tsim los ntawm electrostatic attraction ntawm ob oppositely them ions . Ionic daim ntawv cog lus yog tsim los ntawm ib qho cation, uas feem ntau yog hlau, thiab anion, uas feem ntau yog nonmetal. Ib covalent daim ntawv cog lus Muaj ib khub ntawm electrons raug muab sib koom ntawm atoms.
Qhov twg ob lub ntsiab lus feem ntau yuav sib txuas nrog ib leeg?
Oxygen (O) thiab tshuaj fluorine (F) yog ob qho piv txwv zoo. Txhua yam ntawm cov ntsiab lus no tab tom nrhiav ob peb lub tshuab hluav taws xob los ua lub plhaub puv. Lawv txhua tus muaj ib lub plhaub puv nrog ob lub tshuab hluav taws xob, tab sis lawv lub plhaub thib ob xav kom muaj yim.
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
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Dab tsi hydrocarbon muaj ob daim ntawv cog lus hauv nws cov pob txha carbon?
Organic compounds uas muaj carbon-carbon ob daim ntawv cog lus hu ua alkenes. Cov pa roj carbon atoms koom nrog ob daim ntawv cog lus yog sp2 hybridized. Ob qho yooj yim alkenes yog ethene (C2H4) thiab propene (C3H6). Alkenes nyob rau hauv uas txoj hauj lwm ntawm ob daim ntawv cog lus sib txawv yog txawv molecules