Dab tsi covalent daim ntawv cog lus muaj 2 sib koom electrons?
Dab tsi covalent daim ntawv cog lus muaj 2 sib koom electrons?

Video: Dab tsi covalent daim ntawv cog lus muaj 2 sib koom electrons?

Video: Dab tsi covalent daim ntawv cog lus muaj 2 sib koom electrons?
Video: What is Covalency and electrovalency | how to identify Electrovalency and covalency 2024, Kaum ib hlis
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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.

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