Yuav ua li cas koj pom lub plhaub electron ntawm ib lub caij?
Yuav ua li cas koj pom lub plhaub electron ntawm ib lub caij?

Video: Yuav ua li cas koj pom lub plhaub electron ntawm ib lub caij?

Video: Yuav ua li cas koj pom lub plhaub electron ntawm ib lub caij?
Video: nyab ntau niam pog tuag txau hlub heev dam plaub tug tav(by)15/6/2023 2024, Kaum ib hlis
Anonim

Txhua plhaub tuaj yeem muaj tus lej tas li ntawm electrons : Thawj plhaub tuaj yeem tuav tau ob electrons , ob plhaub tuaj yeem tuav txog yim (2 + 6) electrons , peb plhaub tuaj yeem tuav txog 18 (2 + 6 + 10) thiab lwm yam. General formula yog qhov nth plhaub tuaj yeem nyob hauv txoj cai tuav txog 2(n2) electrons.

Kuj paub yog, dab tsi yog lub plhaub hauv electron configuration?

Ib electron plhaub yog sab nraud ntawm ib qho atom nyob ib ncig ntawm lub atomic nucleus. Nws yog qhov chaw hluav taws xob s yog, thiab yog ib pawg ntawm atomic orbitals nrog tib tus nqi ntawm tus thawj tswj hwm quantum tooj n.

pes tsawg electrons nyob rau hauv txhua lub plhaub? Txhua lub plhaub tuaj yeem muaj tus lej tas li ntawm electrons : Thawj plhaub tuaj yeem tuav tau ob electrons , ob plhaub tuaj yeem tuav txog yim (2 + 6) electrons , peb plhaub tuaj yeem tuav txog 18 (2 + 6 + 10) thiab lwm yam. General formula yog qhov nth plhaub tuaj yeem nyob hauv txoj cai tuav txog 2(n2) electrons.

Qhov thib ob, koj tuaj yeem qhia tau pes tsawg lub valence electrons ib lub caij muaj?

Rau nruab nrab atoms, tus naj npawb ntawm valence electrons yog sib npaug rau atom lub ntsiab pab pawg naj npawb. Lub ntsiab pab pawg naj npawb rau ib keeb tuaj yeem pom los ntawm nws kab ntawv ntawm lub sijhawm teem sijhawm. Piv txwv li, carbon yog nyob rau hauv pawg 4 thiab muaj 4 valence electrons . Oxygen yog nyob rau hauv pawg 6 thiab muaj 6 valence electrons.

Vim li cas tsuas muaj 8 electrons nyob rau hauv lub plhaub sab nrauv?

Lub yim- electrons stability ntawm lub atom yog stemmed los ntawm stability ntawm noble gases los yog cov laus lub npe inert gases, uas tau ntev tau paub tias yog unreactive los yog noble. Txawm li cas los xij, txoj cai no yog tsim nyog rau cov ntsiab lus ntawm kab thib ob hauv lub rooj zaum, uas lawv sab nraud - plhaub muaj peev xwm yog 8 electron.

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