Cov txheej txheem:
Video: Puas yog tag nrho cov ionic compounds muaj cov qauv lattice?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib ionic compound yog ib tug loj qauv ntawm ions . Cov muaj ions ib txwm, repeating arrangement hu ua ib ionic txheej . Qhov no yog vim li cas ionic compounds form crystals nrog cov duab tsis tu ncua.
Tsis tas li ntawd, yog vim li cas ionic compounds nyob rau hauv ib tug crystalline lattice?
Cov yam ntxwv ntawm ionic compounds ua raws li kev txiav txim siv lead ua lattice kev npaj ntawm nruj bondedcharged hais uas ua rau lawv. Ionic compounds nyiam kom muaj siab melting thiab boiling ntsiab lus, vim hais tias cov attraction ntawm nruab nrab ions hauv daim kab xev muaj zog heev.
Ib yam li ntawd, ionic lattice yog dab tsi? Ib ionic Cov tshuaj muaj cations thiab anionsin a daim kab xev qauv. Cov ionic txheej structureis tuav ua ke los ntawm electrostatic rog ntawm attraction ntawm oppositely them ions . Cov hlau los yog hlau alloy muaj hlau cations thiab lub hiav txwv ntawm delocalised electrons.
Ntawm no, puas yog tag nrho cov ionic compounds crystalline?
Tus kheej ions hauv ib ionic compound feem ntau muaj ntau tus neeg nyob ze ze tshaj plaws, yog li tsis suav tias yog ib feem ntawm cov molecules, tab sis tsis yog ib feem ntawm kev txuas ntxiv peb-seem, feem ntau hauv ib crystalline qauv. Ionic compounds feem ntau muaj cov ntsiab lus siab melting thiab boiling, thiab yog tawv thiab nkig.
4 yam ntxwv ntawm ionic compounds yog dab tsi?
Nov yog cov npe luv luv ntawm cov khoom tseem ceeb:
- Lawv tsim crystals.
- Lawv muaj ntau dua enthalpies ntawm fusion thiab vaporization dua cov tebchaw molecular.
- Lawv nyuaj.
- Lawv yog cov nkig.
- Lawv muaj cov ntsiab lus melting siab thiab tseem kub kub.
- Lawv ua hluav taws xob tab sis tsuas yog thaum lawv yaj hauv dej.
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