Video: Qhov laj thawj twg zoo tshaj plaws piav qhia vim li cas cov hlau tsis muaj ductile es tsis nkig?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov hlau yog ductile es tsis txhob nkig vim lawv muaj daim ntawv cog lus hloov tau. Ductility txhais tau tias muaj peev xwm ntawm a hlau yuav tsum tau kos rau hauv cov xov hlau. A hlau muaj daim ntawv cog lus hloov tau. Qhov kev hloov pauv no tso cai rau lawv ua ductile.
Ib yam li ntawd, vim li cas cov hlau tsis muaj nkig?
Vim hais tias cov delocalised electrons yog dawb txav mus. Cov delocalised electrons yog dawb txav mus thoob plaws hauv cov hlau loj loj lattice, yog li ib txheej ntawm hlau ions swb dua lwm tus, cov electrons tuaj yeem txav mus ua kom tag nrho cov qauv sib txuas ua ke.
Ib tug kuj nug, yam khoom twg muaj tseeb rau cov hlau? Lub cev Cov khoom ntawm Hlau Hlau yog lustrous, malleable, ductile, zoo conductors ntawm tshav kub thiab hluav taws xob. Lwm yam khoom suav nrog: Xeev: Hlau yog cov khib nyiab ntawm chav tsev kub tshwj tsis yog cov mercury, uas yog kua ntawm chav tsev kub (Gallium yog kua rau hnub kub).
Cov yam ntxwv twg ntawm cov hlau atom pab piav qhia vim li cas Valence?
Yam ntxwv ntawm hlau atoms pab piav qhia vim li cas valence electrons hauv a hlau yog delocalized? Hlau atoms yog loj thiab muaj siab electronegativities. Hlau atoms yog me me thiab muaj tsawg electronegativities. Hlau atoms yog loj thiab muaj tsawg electronegativities.
Qhov laj thawj twg zoo tshaj piav qhia tias yog vim li cas cov hlau tuaj yeem ua tau?
Cov khoom ntawm Hlau Lawv cuam tshuam lub teeb vim yog cov dawb electrons. Hlau yog malleable vim tias nws cov atoms tuaj yeem xaub hla ib leeg yam tsis muaj kev puas tsuaj rau nws cov qauv.
Pom zoo:
Vim li cas cov pa roj carbon ntau tshaj ntawm cov tebchaw muab ob qho laj thawj?
Nws yog vim catenation uas carbon tsim ib tug loj tus naj npawb ntawm cov tebchaw. Cov pa roj carbon muaj plaub electrons hauv nws lub plhaub valence. Carbon, siv plaub valence electrons, muaj peev xwm tsim ntau daim ntawv cog lus xws li ob npaug thiab triple. Qhov no kuj yog vim li cas rau lub hav zoov ntawm cov pa roj carbon ntau
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Cov yam ntxwv twg ntawm cov hlau atoms pab piav qhia vim li cas valence electrons hauv cov hlau yog delocalized?
Ib daim ntawv cog lus hlau yog kev sib koom ntawm ntau cov khoom siv hluav taws xob sib cais ntawm ntau cov ions zoo, qhov twg cov electrons ua raws li 'cov kua nplaum' muab cov khoom tsim nyog. Nws tsis zoo li covalent lossis ionic bonding. Cov hlau muaj zog ionization tsawg. Yog li ntawd, valence electrons tuaj yeem raug delocalized thoob plaws hauv cov hlau
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Cov roj twg coj zoo tshaj plaws zoo li cov pa roj zoo?
helium Raws li txoj cai, koj ua li cas txiav txim siab seb cov roj twg coj zoo tshaj plaws? Feem ntau, a gas coj mas zoo li ib zoo tagnrho gas ntawm qhov kub siab dua thiab qis dua, vim tias lub zog muaj peev xwm vim muaj zog intermolecular ua tsawg dua piv nrog cov khoom 'kinetic zog, thiab qhov loj ntawm cov molecules yuav tsawg dua piv rau qhov khoob ntawm lawv.