Siv tawm ntawm tus qauv . Nyob rau hauv graphite, txhua carbon yog sp2-hybridized thiab tsim plaub covalent daim ntawv cog lus nrog rau lwm yam C-atoms sib tshooj sab ntse kom muab π-electron huab electron huab Electron huab yog ib txoj hauv kev los piav qhia txog atomic orbital. … Tus qauv huab cua electron txawv ntawm Bohr atomic qauv qub los ntawm Niels Bohr. Bohr tham txog electrons orbiting lub nucleus. Piav qhia tus cwj pwm ntawm cov electron "orbits" yog qhov teeb meem tseem ceeb hauv kev txhim kho quantum mechanics. https://simple.wikipedia.org › wiki › Electron_cloud
Electron huab - Yooj Yim English Wikipedia, phau ntawv dawb ceev
uas yog delocalized thiab yog li cov hluav taws xob kis tawm ntawm tus qauv.
Puas graphite electrons hauv zos?
Nyob rau hauv pob zeb diamond tag nrho plaub txheej electrons ntawm txhua carbon atom yog 'localized' ntawm lub atoms nyob rau hauv covalent bonding. … Hauv graphite, txhua cov pa roj carbon atom siv tsuas yog 3 ntawm nws4 sab nraud lub zog hluav taws xob hauv cov khoom sib txuas rau peb lwm cov pa roj carbon atom hauv lub dav hlau.
Qhov twg yog qhov tseeb rau cov electron tam sim no hauv graphite?
Ua tiav cov lus teb ib ntus:
Carbon atom hauv graphite tam sim no insp2 hybridized xeev. Hauv graphite 1s thiab 2p orbital hybridize thiab daim ntawv sp2 hybridized orbital thiab ib qho orbital tseem hybridized. Peb hybrid orbits muaj ib tug electron txhua. Cov electrons no tsim ib daim ntawv cog lus nrog cov hybridorbital ntawm lwm C-atoms.
Vim li cas electrons delocalized graphite?
Txhua cov pa roj carbon atom yog sib koom ua ke rau hauv nws cov txheej txheem nrog peb daim ntawv cog lus muaj zog. Qhov no tawm hauv txhua lub atom nrog ib qho khoom siv hluav taws xob, uas ua ke tsim ib qho delocalised 'hiav txwv' ntawm electrons loosely bonding cov txheej ua ke. Cov hluav taws xob delocalised no tuaj yeem txav mus los ua ke - ua graphite ib qho hluav taws xob zoo.
Qhov twg yog cov delocalised electrons hauv graphite?
Kev sib raug zoo hauv graphite
Cov "cov khoom seem" cov hluav taws xob hauv txhua cov pa roj carbon atom ua delocalised hla tag nrho cov ntawv ntawm atoms hauv ib txheej. Lawv tsis cuam tshuam ncaj qha nrog ib qho tshwj xeeb atom lossis khub ntawm atoms, tab sis muaj kev ywj pheej mus ncig thoob plaws hauv daim ntawv.
