Qhov sib txawv tseem ceeb ntawm cov ntsiab lus polyvalent thiab polyatomic ion yog tias cov ntsiab lus polyvalent muaj ntau dua li qhov muaj txiaj ntsig thaum polyatomic ions muaj ntau dua ib lub atom uas muaj kev sib raug zoo rau ib leeg.
Cov lus ua ntej "poly-" hais txog "ntau". Hauv lwm lo lus, yog tias peb sau ib yam dab tsi uas siv cov lus ua ntej, nws txhais tau tias muaj ntau tshaj ib yam ntawm qhov ntawd. Piv txwv li, polyvalent txhais tau tias ntau tshaj ib valence thiab polyatomic txhais tau tias ntau tshaj ib atom.
Yuav ua li cas yog Polyvalent Element?
Polyvalent element yog cov khoom siv tshuaj muaj ntau tshaj ib qho txiaj ntsig. Hauv lwm lo lus, cov tshuaj lom neeg no koom nrog kev tsim cov tshuaj lom neeg siv cov lej sib txawv ntawm cov khoom siv hluav taws xob. Lub ntsiab lus ntawm lo lus no yog "multivalent element". Qee qhov piv txwv muaj raws li hauv qab no:
- Iron qhia ob lub xeev oxidation li hlau (II) thiab hlau (III). Qhov no txhais tau tias hlau tuaj yeem pom ob qhov valences.
- tooj liab qhia ob lub xeev oxidation xws li tooj liab (I) thiab tooj liab (II). Tooj liab tuaj yeem tshem tawm ib qho hluav taws xob lossis ob lub hluav taws xob thaum tsim cov tshuaj lom neeg.
- Chromium qhia chromium (II), (III) thiab (VI) oxidation xeev feem ntau.
YYuav ua li cas yog Polyatomic Ion?
Polyatomic ion yog hom tshuaj lom neeg uas muaj nqi thiab ntau dua ib lub atom. Qhov no tuaj yeem raug them zoo (cation) lossis tsis zoo (anion). Hauv qhov sib piv, ib qho atoms uas muaj nqi yog monoatomic ions.
Daim duab 01: Daim duab qhia txog Polyatomic Ion
Thaum muab lub npe zoo li no, muaj ob txoj cai peb yuav tsum ua raws. Ua ntej, peb yuav tsum siv lub npe "bi-" yog tias muaj hydrogen nyob rau hauv cov tshuaj formula thiab naming lub ion nyob ntawm seb muaj pes tsawg tus oxygen atoms nyob rau hauv lub ion. Piv txwv li, carbonate anion yog polyatomic ion (CO32-) thiab thaum peb ntxiv hydrogen atom rau nws, ces peb hu rau ion. bicarbonate (HCO3–). Txoj cai thib ob ntawm nomenclature suav cov naj npawb ntawm cov pa atoms tam sim no hauv ion, piv txwv li ClO2– yog chlorite thiab ClO 3 – yog chlorate.
Qhov txawv ntawm Polyvalent Element thiab Polyatomic Ion yog dab tsi?
Qhov sib txawv tseem ceeb ntawm cov ntsiab lus polyvalent thiab polyatomic ion yog tias cov ntsiab lus polyvalent muaj ntau dua li qhov muaj txiaj ntsig thaum polyatomic ions muaj ntau dua ib lub atom uas muaj kev sib raug zoo rau ib leeg. Thaum xav txog txoj kev xav tom qab cov ntsiab lus no, polyvalent txhais tau tias nws siv ntau dua ib lub tshuab hluav taws xob hauv kev tsim cov tshuaj lom neeg thaum lub sij hawm polyatomic txhais tau tias nws siv ntau dua ib lub atom los ua ib qho ion.
Summary – Polyvalent Element vs Polyatomic Ion
Yeej, qhov sib txawv tseem ceeb ntawm cov ntsiab lus polyvalent thiab polyatomic ion yog tias cov ntsiab lus polyvalent muaj ntau tshaj li ib qho valency whereas polyatomic ions muaj ntau tshaj ib lub atom uas yog covalently bonded rau ib leeg.
