Video: Vim li cas nws txawv txawv uas graphite yuav ua hluav taws xob?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Graphite yog carbon mineral / ore naturallyexhibits hluav taws xob conductivity. Nws muaj peev xwm conductelectricity vim qhov loj ntawm cov dawb unbounded electronsfloating nyob rau hauv nws cov pa roj carbon txheej. Cov valence electrons no yog freeto tsiv, yog li muaj peev xwm ua hluav taws xob.
Ib sab ntawm qhov no, dab tsi txawv ntawm graphite ua hluav taws xob?
Lub delocalised electrons yog dawb txav los ntawm tus qauv, yog li ntawd graphite ua tau ua hluav taws xob . Qhov no ua rau graphite pab tau rau electrodes hauv roj teeb thiab forelectrolysis. Cov txheej hauv graphite tuaj yeem swb dhau ib leeg vim lub zog nruab nrab ntawm lawv tsis muaj zog.
Ib yam li ntawd, vim li cas graphite tuaj yeem ua hluav taws xob thiab tsis yog Pob Zeb Diamond? Graphite tuaj yeem ua hluav taws xob vim hais tias ntawm thedelocalised (dawb) electrons nyob rau hauv nws cov qauv. Cov no tshwm sim vim hais tias txhua cov pa roj carbon atom tsuas yog sib txuas rau 3 lwm cov pa roj carbon atoms. Txawm li cas los xij, hauv pob zeb diamond , tag nrho 4 txheej electrons ntawm txhua cov pa roj carbon atom siv hauv covalent bonding, yog li muaj tsis muaj delocalised electrons.
Tsuas yog li ntawd, yog vim li cas Graphite yog ib tug zoo conductor ntawm hluav taws xob?
Graphite yog ib tug zoo conductor ntawm hluav taws xob . Nws cov qauv yog qhov laj thawj tseem ceeb rau cov cuab yeej no. Txhua carbon atom nyob rau hauv graphite yog txuas ncaj qha rau tsuas yog peb cov pa roj carbon atomsthrough covalent bonds. Cov electrons dawb no ua graphite a zoo conductor ntawm hluav taws xob thiab ib zoo roj nplua nyeem.
graphene puas tuaj yeem ua hluav taws xob?
Graphene ua hluav taws xob . Qhov no yog vim nws cov qauv. Hauv graphene , txhua carbon atom iscovalently bonded rau 3 lwm tus. Lub atom no muaj free'delocalised' electrons uas nqa tau thiab hla ib hluav taws xob nqi.
Pom zoo:
Vim li cas kuv lub tshuab hluav taws xob tsis tsim hluav taws xob?
Feem ntau ua rau lub tshuab hluav taws xob portable tsis tsim hluav taws xob yog los ntawm kev poob ntawm cov hlau nplaum seem. Generators ua hauj lwm los ntawm kev txav hluav taws xob conductors los ntawm magnetic teb. Koj lub tshuab hluav taws xob tsis muaj hlau nplaum. Thaum cov hlau nplaum seem ploj lawm, lub tshuab hluav taws xob yuav tsis muaj zog thaum pib
Vim li cas cov hluav taws xob sab nraud tsuas yog suav nrog hauv daim duab kos duab hluav taws xob?
Atoms nrog 5 los yog ntau tshaj valence electrons tau electrons tsim ib tug tsis zoo ion, los yog anion. Vim li cas thiaj li cov hluav taws xob sab nraud tsuas yog cov uas suav nrog hauv daim duab orbital filling? lawv tsuas yog cov uas koom nrog cov tshuaj tiv thaiv thiab kev sib raug zoo. 2s orbital nyob deb ntawm lub nucleus txhais tau tias nws muaj zog ntau dua
Dab tsi yog cov yam ntxwv ua siab hloov hluav taws xob hloov hluav taws xob LET muaj thaum piv nrog LET hluav taws xob tsawg?
Dab tsi yog cov yam ntxwv ua kom muaj hluav taws xob hloov hluav taws xob siab (LET) hluav taws xob muaj thaum piv nrog cov hluav taws xob qis-LET? Cov huab hwm coj ntau ntxiv, txo qhov nkag mus. (Vim lawv cov nqi hluav taws xob thiab cov khoom loj heev, lawv ua rau ntau ionizations hauv cov ntaub so ntswg, sai sai poob lub zog
Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms?
Tus nqi zoo attracts tus nqi tsis zoo thiab ua rau lwm tus nqi zoo. Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms? Cov nqi hluav taws xob yog cov cuab yeej ntawm tag nrho cov atoms
Vim li cas cov kab hluav taws xob ua hluav taws xob yog perpendicular rau equipotential nto?
Txij li cov kab hluav taws xob hluav taws xob taw qhia radiallyaway ntawm tus nqi, lawv yog perpendicular mus rau cov kab hluav taws xob. Lub peev xwm yog tib yam nyob rau hauv txhua txoj kab uas muaj peev xwm, txhais tau hais tias tsis muaj haujlwm yuav tsum tau txav mus los ntawm ib qho ntawm cov kab no