Atoms ua li cas thiaj ruaj khov octet?

Cov txheej txheem:

Atoms ua li cas thiaj ruaj khov octet?
Atoms ua li cas thiaj ruaj khov octet?
Anonim

Atoms yuav hnov mob kom tau nyob rau hauv lub xeev ruaj khov tshaj plaws. … Ib qho kev npaj ruaj khov yog tuaj koom thaum lub atom nyob ib puag ncig ntawm yim electrons. Qhov octet no tuaj yeem tsim los ntawm tus kheej cov khoom siv hluav taws xob thiab qee cov khoom siv hluav taws xob sib koom. Yog li, ib qho atom txuas ntxiv tsim cov ntawv cog lus kom txog thaum lub octet ntawm electrons raug tsim.

Atoms tuaj yeem ua tiav octet ruaj khov li cas?

Muaj ob txoj hauv kev uas atoms tuaj yeem ua tiav txoj cai octet. Ib txoj hauv kev yog los ntawm kev sib koom lawv cov valence electrons nrog lwm cov atoms. Txoj kev thib ob yog los ntawm kev hloov valence electrons ntawm ib lub atom mus rau lwm qhov.

Atoms ua kom lub xeev octet li cas?

Raws li txoj cai octet, cov atoms tam sim ntawd ua ntej thiab tom qab neon nyob rau hauv lub sij hawm (piv txwv li C, N, O, F, Na, Mg thiab Al), zoo li muaj qhov zoo sib xws configuration los ntawm kev nce, poob, lossis sib koom electrons . Lub argon atom muaj ib qho analogous 3s 2 3p6 configuration.

Atoms tau txais kev ruaj ntseg li cas?

Yuav ua kom muaj kev ruaj ntseg ntau dua, atoms yuav zoo li ua tiav lawv cov plhaub sab nrauv thiab yuav sib txuas nrog lwm cov ntsiab luskom ua tiav lub hom phiaj no los ntawm kev sib koom electrons, txais electrons los ntawm lwm lub atom, lossis pub electrons rau lwm lub atom.

Vim li cas atoms ua raws li txoj cai octet?

Atoms ua raws li txoj cai octet vim lawv ib txwm nrhiav qhov ruaj khov tshaj plaws electron configuration. Ua raws li txoj cai octet ua rau tag nrho s- thiab p-orbitals nyob rau hauv ib tug atom lub sab nraud lub zog theem. Cov ntsiab lus qis atomic hnyav (thawj 20 lub ntsiab lus) feem ntau yuav ua raws li txoj cai octet.

Pom zoo:

Nthuav cov khoom
Koj puas tuaj yeem mus ntsib dagestan?
Nyeem ntxiv

Koj puas tuaj yeem mus ntsib dagestan?

Dagestan, officially lub koom pheej ntawm Dagestan yog ib lub koom pheej ntawm Russia nyob rau hauv lub Caspian Hiav txwv, nyob rau hauv lub North Caucasus ntawm Eastern Europe. Nws nyob rau sab qaum teb ntawm Greater Caucasus, thiab yog ib feem ntawm North Caucasian Federal District.

Xab npum suds siv rau dab tsi?
Nyeem ntxiv

Xab npum suds siv rau dab tsi?

A xab npum suds enema yog ib txoj hauv kev kho cem quav. Qee tus neeg kuj siv nws los kho fecal incontinence lossis tshem lawv cov quav ua ntej kev kho mob. Thaum muaj ntau hom enemas, xab npum suds enema tseem yog ib qho ntawm ntau hom, tshwj xeeb tshaj yog rau cem quav.

Puas yog qhov kev xeem thib ob?
Nyeem ntxiv

Puas yog qhov kev xeem thib ob?

Qhov thib ob derivative yuav yog siv los txiav txim siab hauv zos extrema ntawm kev ua haujlwm raws li qee yam xwm txheej. Yog tias qhov kev ua haujlwm muaj qhov tseem ceeb rau qhov twg f′(x)=0 thiab qhov thib ob derivative yog qhov zoo ntawm qhov no, ces f muaj qhov tsawg kawg nkaus hauv zos ntawm no.