Video: Puas yog graphite muaj ionic bonds?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Graphite . Graphite muaj ib tug loj heev covalent qauv nyob rau hauv uas: txhua carbon atom yog koom rau peb lwm carbon atoms los ntawm covalent daim ntawv cog lus . txhua carbon atom muaj ib qho uas tsis yog-bonded txheej electron, uas dhau los ua delocalised.
Tsis tas li cov lus nug yog, hom kev sib txuas ntawm graphite muaj dab tsi?
Graphite muaj ib tug loj heev covalent qauv muaj cov txheej txheem ntawm carbon atoms. Cov pa roj carbon atoms muaj 4 valence electrons uas muaj rau kev sib txuas. Nyob rau hauv graphite, txhua carbon atom yog covalently bonded rau 3 lwm carbon atoms. Yog li ntawd, txhua cov pa roj carbon atom muaj 1 electron uas tsis siv rau kev sib txuas.
Tsis tas li ntawd, puas muaj ob daim ntawv cog lus hauv graphite? Benzene thiab graphite muaj tsis muaj ib leeg thiab ob daim ntawv cog lus . Lawv yog cov "aromatic" cov tebchaw uas cov electrons kis mus rau ntau lub atoms, nyob rau hauv cov ntaub ntawv no tag nrho cov compound lub cev pob txha.
Ib yam li ntawd, nws tau nug, puas yog graphite muaj cov ions zoo?
Cov ntsiab lus hlau thiab carbon ( graphite ) yog cov khoom siv hluav taws xob tab sis cov khoom tsis yog hlau yog cov hluav taws xob hluav taws xob. Ionic bonds yog electrostatic attraction ntawm zoo thiab tsis zoo ions . Ionic tshuaj sib xyaw ua tsis ua hluav taws xob nyob rau hauv lub xeev muaj zog raws li lub ions tsis pub dawb txav mus los.
Puas yog graphite yog pob zeb diamond?
Pob zeb diamond : Giant covalent qauv, nrog txhua carbon covalently bonded rau plaub lwm carbon atoms nyob rau hauv ib tug tetrahedral kev npaj los tsim ib tug nruj qauv. Graphite : Nws kuj yog Giant covalent qauv, nrog rau txhua cov pa roj carbon covalently bonded rau peb lwm carbon atoms nyob rau hauv ib tug hexagonal kev npaj.
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