Electron shielding yog hais txog qhov thaiv ntawm valence plhaub electron attraction los ntawm lub nucleus, vim muaj cov khoom siv hluav taws xob sab hauv. Electrons nyob rau hauv ib lub orbital tuaj yeem tiv thaiv p electrons ntawm tib lub zog vim yog cov duab kheej kheej ntawm lub orbital.
pom cov thaiv hluav taws xob nyob qhov twg?
Electrons hauv ib lub atom tuaj yeem tiv thaiv ib leeg los ntawm kev rub ntawm lub nucleus. Cov nyhuv no, hu ua cov nyhuv shielding, piav qhia txog qhov txo qis ntawm cov hluav taws xob thiab cov nucleus hauv ib qho atom nrog ntau dua ib lub plhaub hluav taws xob.
Puas electron shielding nce saum toj mus rau hauv qab?
Lub zog ionization ntawm cov ntsiab lus hauv ib pawg feem ntau txo qis los ntawm sab saum toj mus rau hauv qab Qhov no yog vim electron shielding. Cov pa roj carbon monoxide muaj lub zog ionization siab heev vim tias lawv cov valence tag nrho raws li tau hais hauv daim duab. Nco ntsoov tias helium muaj lub zog ionization siab tshaj plaws ntawm tag nrho cov khoom.
Qhov twg electrons tiv thaiv tshaj?
Vim li no, electrons hauv ib lub orbital muaj lub zog tiv thaiv ntau dua li cov hluav taws xob hauv p lossis d orbital ntawm tib lub plhaub. Tsis tas li ntawd, vim tias lawv nkag tau zoo heev, electrons hauv s orbitals tsis tshua muaj txiaj ntsig los ntawm electrons hauv lwm lub orbitals.
Lub orbitals twg yog qhov zoo tshaj plaws ntawm kev tiv thaiv?
2s thaiv lub atom zoo dua 2p vim hais tias s orbitals yog ze dua thiab nyob ib puag ncig lub nucleus ntau dua p orbitals, uas txuas ntxiv mus. 3p shields zoo dua 3d, vim p orbitals yog ze rau lub nucleus tshaj 3d orbitals.
