Koj ua li cas khi polyatomic ions?
Koj ua li cas khi polyatomic ions?

Video: Koj ua li cas khi polyatomic ions?

Video: Koj ua li cas khi polyatomic ions?
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A polyatomic ion muaj ob los yog ntau dua covalently bonded atoms uas ua raws li ib leeg ion . Cov polyatomic ion daim ntawv ionic daim ntawv cog lus nrog lwm tus ions thiab ua externally raws li ib tug unit, ib yam li Monatomic ions.

Ua raws li qhov no, vim li cas polyatomic ions covalent?

Polyatomic ions yog covalent compounds uas muaj tag nrho cov nqi. Hauv kev xaus, ntau yam ntsiab lus tau tuav ua ke nrog covalent bonds, tab sis lub compound muaj tag nrho cov nqi, kom tag nrho cov compound behaves li ion thiab tuaj yeem siv rau hauv ionic kev sib raug zoo.

Tsis tas li ntawd, cov cai rau npe polyatomic ions yog dab tsi? Txoj cai 1. Cov cation yog sau ua ntej nyob rau hauv lub npe ; lub anion yog sau thib ob nyob rau hauv lub npe . Txoj cai 2. Thaum cov qauv ntsuas muaj ob lossis ntau dua ntawm tib yam polyatomic ion , uas ion yog sau nyob rau hauv kab lus nrog cov subscript sau sab nraum cov kab lus.

Ib yam li ntawd, polyatomic ion muab piv txwv li cas?

Polyatomic ions yog ions uas muaj ntau tshaj ib lub atom. Rau piv txwv , nitrate ion , NO3-, muaj ib tug nitrogen atom thiab peb oxygen atoms. Cov atoms hauv a polyatomic ion feem ntau yog covalently bonded rau ib leeg, thiab yog li ntawd nyob ua ke raws li ib leeg, them unit.

Yuav ua li cas ions tau txais lawv cov nqi?

Ions yog tsim thaum atoms poob los yog nce electrons thiaj li ua tau raws li txoj cai octet thiab muaj tag nrho sab nrauv valence electron plhaub. Thaum lawv poob electrons, lawv ua zoo raug them thiab muaj npe cations. Thaum lawv nce electrons, lawv tsis zoo raug them thiab muaj npe anions.

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