Vim li cas halogens muaj electronegativity siab?
Vim li cas halogens muaj electronegativity siab?

Video: Vim li cas halogens muaj electronegativity siab?

Video: Vim li cas halogens muaj electronegativity siab?
Video: pob txha ntses daig caj pas lawm yuav ua li cas 2024, Kaum ib hlis
Anonim

Vim lawv siab muaj nuj nqis nuclear, halogens yog siab heev electronegative . Yog li ntawd, lawv yog heev reactive thiab ua tau nce ib qho electron los ntawm cov tshuaj tiv thaiv nrog lwm yam. Halogen tuaj yeem ua rau muaj teeb meem los yog ua rau tuag taus rau cov kab mob lom hauv qhov ntau txaus.

Kuj tseem yuav paub yog, vim li cas pawg 17 muaj qhov siab tshaj plaws electronegativity?

Electronegativity nce thoob ib lub sij hawm, thiab txo qis a pab pawg . Yog li ntawd, fluorine muaj qhov siab tshaj plaws electronegativity tawm ntawm tag nrho cov ntsiab lus. Vim yog fluorine muaj xya valence electrons, nws tsuas yog xav tau ib qho hluav taws xob ntxiv los ua kom muaj txiaj ntsig zoo ntawm cov roj hluav taws xob (yim valence electrons).

Ib tug kuj yuav nug, dab tsi yog qhov electronegativity ntawm halogens? Lub ntsiab txhais ntawm electronegativity yog rub lub caij rau ntau electrons. Yog li VIIA los yog Halogens yuav muaj qhov siab tshaj plaws electronegativity ntawm tej yam nyob rau hauv lawv kab, los yog lub sij hawm. Florine naj npawb 9 F199 muaj qhov siab tshaj plaws electronegativity ntawm ib qho khoom nyob rau hauv lub sij hawm lub rooj ntawm 4.0.

Kuj paub, qhov twg halogen muaj qhov siab tshaj plaws electronegativity?

Fluorine

Vim li cas halogens thiaj li hu ua li ntawd?

Pawg 17 cov ntsiab lus yog hu ua halogens vim halogen yog ib lo lus Greek uas txhais tau tias 'tsim ntsev'. Halogens suav nrog fluorine, chlorine, bromine, iodine thiab astatine. Lawv txhua tus yog cov tsis yog hlau. Lawv hnov mob nrog hlau los tsim cov tebchaw hu ua ntsev.

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