Video: Cov ntsiab lus twg tau txais lossis poob electrons?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntsiab lus uas yog hlau nyiam poob electrons thiab ua tau zoo them ions hu ua cations. Cov ntsiab lus uas yog nonmetals nyiam nce electrons thiab ua tsis zoo them ions hu ua anions. Cov hlau uas nyob rau hauv kem 1A ntawm lub sij hawm lub sij hawm daim ntawv ions los ntawm poob ib hluav taws xob.
Ib yam li ntawd, cov ntsiab lus dab tsi xav kom tau txais electrons?
Nonmetals (txoj cai 1/3 ntawm Daim Ntawv Qhia) thaum lawv tsim cov ionic tebchaw ua li ntawd los ntawm kev txais electrons. Qhov no yog vim lub fact tias lawv muaj siab ionization energies thiab siab electron affinities (xa mus rau lawv muaj peev xwm mus sau electrons). Thaum lawv tsim ions, lawv yog cov tsis zoo thiab hu ua anions.
Tsis tas li ntawd, pes tsawg electrons yuav nce lossis poob? Tag nrho pawg 1 atom tuaj yeem poob ib hluav taws xob tsim kom muaj txiaj ntsig zoo ions. Piv txwv li, potassium atoms ua qhov no los tsim ions nrog tib yam hluav taws xob configuration li noble gas argon. Pawg 2 atom poob ob electrons tsim kom muaj txiaj ntsig zoo ions.
Yog li ntawd, cov ntsiab lus twg plam electrons yooj yim tshaj plaws?
Tshwj xeeb, cesium (Cs) tuaj yeem tso nws qhov valence hluav taws xob ntau yooj yim tshaj lithium (Li). Qhov tseeb, rau cov hlau alkali (the cov ntsiab lus hauv pab pawg 1), qhov yooj yim ntawm kev tso tseg hluav taws xob varies raws li nram no: Cs > Rb > K > Na > Li with Cs the feem ntau yuav, thiab Li qhov tsawg tshaj plaws, yuav poob ib hluav taws xob.
Vim li cas cov ntsiab lus xav tau electrons?
Atoms nce / poob electrons ua kom tiav lawv octet lossis duplet kom ruaj khov. txij thaum noble gases twb tau txais kev ruaj ntseg siab tshaj plaws vim hais tias lawv cov plhaub sab nraud ua tiav, peb tuaj yeem hais tias atoms. xav kom zoo li noble gases kom ruaj khov.
Pom zoo:
Cov organic tebchaw tau txais lawv lub npe Li cas lo lus muaj feem xyuam rau nws lub ntsiab lus li cas?
Lo lus hais txog nws lub ntsiab lus li cas? Organic Compounds tau txais nws lub npe los ntawm tus lej ntawm cov ntawv cog lus carbon. Lo lus muaj feem xyuam rau lub ntsiab lus vim hais tias nws yuav tsum tau ua nrog bonds nyob rau hauv carbon atoms nyob rau hauv cov organic tebchaw
Muaj pes tsawg electrons tau txais lossis poob hauv sodium?
Thaum atoms poob lossis nce electrons lawv hu ua. Yog hais tias lub atom nce, nws hu ua anion. Thaum ib tug atomloses ib tug electron nws hu ua a. Ib tug sodium atom haseleven thiab atom muaj kaum xya electrons
Cov ntsiab lus twg feem ntau yuav tau txais cov hluav taws xob hauv cov tshuaj lom neeg?
Cov hlau tsis yog hlau yuav tau txais cov khoom siv hluav taws xob kom tau txais Noble Gas teeb tsa. Cov muaj kuj muaj Electron affinities thiab siab Ionization energies. Cov hlau zoo li plam electrons thiab cov hlau tsis yog hlau yuav tau txais electrons, yog li hauv kev cuam tshuam nrog ob pawg no, muaj kev hloov hluav taws xob los ntawm cov hlau mus rau cov hlau tsis yog hlau
Vim li cas cov ntsiab lus thiab cov ntsiab lus yog cov tshuaj ntshiab?
Elements thiab compounds yog ob qho tib si piv txwv ntawm cov khoom ntshiab. Ib yam khoom uas tuaj yeem tawg mus rau hauv cov tshuaj lom neeg yooj yim dua (vim tias nws muaj ntau dua ib qho) yog ib qho khoom sib xyaw. Piv txwv li, dej yog acompound tsim los ntawm cov ntsiab lus hydrogen thiaboxygen
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog