Ho Ikhetha ha Liathomo tsa Khabone
Athomo ea khabone ke e 'ngoe ea likarolo tse hlahelletseng ka ho fetisisa tafoleng ea periodic, e bonts'a ho ikhetha ho ikhethang bokhoning ba eona ba ho theha mefuta e fapaneng ea limolek'hule tse rarahaneng le tse tsitsitseng. Khabone (C) ke karolo e nang le nomoro ea athomo ea 6, ho bolelang hore e na le liprothone tse tšeletseng ka har'a nucleus ea eona. Ho feta moo, khabone e na le lielektrone tse tšeletseng, tse ajoang holim'a likhetla tse peli tsa elektrone. Ka tlase, re tla hlahloba litšobotsi le litšobotsi tse ikhethang tse etsang hore athomo ea khabone e be ea bohlokoa hakaale, haholo-holo k'hemistri ea lintho tse phelang.
Sebopeho sa Elektroniki le Tlamo ea Khabone
Ntlha ea pele ea ho utloisisa ho ikhetha ha athomo ea khabone ke sebopeho sa eona sa elektroniki. Ka sebopeho sa elektrone sa 1s² 2s² 2p², khabone e na le lielektrone tse 'ne tsa valence khetleng ea eona e ka ntle. Lielektrone tsena tse 'ne tsa valence li fa khabone bokhoni ba ho theha litlamo tse 'ne tse matla tsa covalent le likarolo tse ling kapa le liathomo tse ling tsa khabone. Bokhoni bona ba ho theha litlamo tse 'ne tsa covalent ke motheo oa leruo la meaho ea limolek'hule e ka khonehang ka athomo ea khabone.
Ho kopanya
Khabone e na le bokgoni ba ho kopana ka mefuta e fapaneng ya ho kopanya: sp³, sp², le sp. Ho kopanya ke tshebetso eo ka yona di-orbital tse fapaneng tsa athomo di ka "kopanang" ho theha di-orbital tse ntjha tse kopanyang tse nang le dibopeho tse ikgethang.
1. ho kopanya sp³: Boemong bona, orbital e le 'ngoe ea 2s le orbital tse tharo tsa 2p lia kopanya ho etsa li-orbital tse 'ne tse lekanang tsa sp³. Sena se fella ka sebopeho sa tetrahedral se nang le likhutlo tsa maqhama a ka bang 109.5°. Mohlala oa khale oa molek'hule e nang le ho kopanya sp³ ke methane (CH₄).
2. ho kopanya sp²: Mona, orbital e le 'ngoe ea 2s le orbital tse peli tsa 2p lia kopanya ho etsa li-orbital tse tharo tse lekanang tsa sp², 'me orbital e le 'ngoe ea 2p e sala e sa kopanngoa. Sena se fella ka sebopeho sa planar sa trigonal se nang le likhutlo tsa maqhama a ka bang 120°. Mohlala oa molek'hule e nang le ho kopanya sp² ke ethylene (C₂H₄).
3. ho kopanya sp: Orbital e le 'ngoe ea 2s le orbital e le 'ngoe ea 2p lia kopana ho etsa li-orbital tse peli tse otlolohileng tsa sp. Li-orbital tse peli tse sa kopanngoang tsa 2p li lula li shebane ka ho otloloha. Sebopeho sa limolek'hule tse nang le ho kopanya sp se otlolohileng ka likhutlo tsa maqhama tse ka bang 180°, joalo ka ha ho bontšitsoe ke molek'hule ea ethyne (C₂H₂).
Li-Allotrope tsa Khabone
Tšobotsi e 'ngoe e ikhethang ea athomo ea khabone ke bokhoni ba eona ba ho etsa li-allotrope tse fapaneng, ke hore, mefuta e fapaneng ea 'mele ea karolo e le' ngoe. Li-allotrope tse tsebahalang haholo tsa khabone ke graphite, daemane, fullerenes, le khabone e sa fetoheng.
1. Taemane: Taemaneng, athomo e 'ngoe le e 'ngoe ea khabone e hokahantsoe ka kopanelo le liathomo tse ling tse 'ne tsa khabone ka sebopeho sa sp³, e leng se etsang sebopeho sa kristale se matla haholo sa mahlakore a mararo. Sena ke sona se etsang hore taemane e be thepa e thata ka ho fetisisa e tsejoang.
2. Graphite: Ho fapana le daemane, ho graphite, athomo e 'ngoe le e 'ngoe ea carbon e hokahana le liathomo tse ling tse tharo tsa carbon ka sebopeho sa sp², e leng se etsang maqephe a mahlakore a mabeli a bitsoang graphene. Maqephe ana aa kopana, empa maqhama a pakeng tsa 'ona a fokola haholo, a etsa hore graphite e be bonolo ebile e thelle, e leng se etsang hore e sebelisoe hangata e le setlolo le ka lipensele.
3. Li-Fullerenes: Tse tsejoang hape e le "libolo tsa bucky," tsena ke meaho ea khabone e tšoanang le libolo tsa bolo ea maoto, tse nang le liathomo tsa khabone tse hlophisitsoeng ka masale a hexagonal le pentagonal. Sebopeho sena se hlahisa limolek'hule tse se nang letho tse fanang ka lits'ebetso tse ka bang teng masimong a fapaneng a saense, ho kenyeletsoa le li-nanotube tsa khabone le thepa ea nanocomposite.
4. Khabone e se nang sebopeho: Ena ke mofuta oa khabone e se nang sebopeho se tloaelehileng. Mehlala ea khabone e se nang sebopeho ke mashala le mosili. Khabone e se nang sebopeho hangata e sebelisoa lits'ebetsong tsa lik'hemik'hale le tsa indasteri, joalo ka ho sefa metsi.
Karolo Bophelong le Khemistri ea Lintho tse Hloahloa
Ha ho pelaelo hore ho ikhetha ha athomo ea khabone ho bonahala haholo k'hemistring ea lintho tse phelang—lekala la k'hemistri le ithutang metsoako ea khabone ka ho khetheha. Bokhoni bo ikhethang ba khabone ba ho theha liketane tse telele le meaho e rarahaneng ea limolek'hule bo nolofalletsa ho thehoa ha limolek'hule tse fapaneng tse hlokahalang bakeng sa bophelo.
hydrocarbon
Metswako e bonolo ka ho fetisisa ya khabone e nang le haeterojene ke di-hydrocarbon, tse bopilweng feela ka diathomo tsa khabone le haeterojene. Di-hydrocarbon di ka ba ketane e otlolohileng, makala, kapa sebopeho sa lesale, mme di tla ka mefuta e fapaneng:
1. Li-alkane: Li-hydrocarbon tse khorisitsoeng tse nang le maqhama a le mong pakeng tsa liathomo tsa khabone. Mehlala: methane (CH₄), ethane (C₂H₆).
2. Li-alkene: Li-hydrocarbon tse nang le tlamo e le 'ngoe kapa tse fetang tse peli pakeng tsa liathomo tsa carbon. Mohlala: ethylene (C₂H₄).
3. Li-alkyne: Li-hydrocarbon tse nang le tlamo e le 'ngoe kapa tse fetang tse tharo pakeng tsa liathomo tsa carbon. Mohlala: acetylene (C₂H₂).
4. Arene: Hydrocarbon e nkhang hamonate e nang le lesale la benzene, e nang le sebopeho sa tlamo e kopaneng. Mohlala: benzene (C₆H₆).
Limolek'hule tsa dibopeho
Liathomo tsa khabone ke motheo oa limolek'hule tsohle tsa bohlokoa tse etsang lintho tse phelang, ho kenyeletsoa:
1. Lik'habohaedreite: Metswako e nang le khabone, haeterojene le oksijene. Mosebetsi oa tsona o ka sehloohong ke ho ba mohloli oa matla bakeng sa lisele. Mohlala: glucose (C₆H₁₂O₆).
2. Lipids: Limolek'hule tse entsoeng haholo-holo ka liketane tse telele tsa hydrocarbon. Li sebetsa e le mabenkele a matla le likarolo tsa sebopeho sa lera la sele. Mehlala: mafura a acid, phospholipids.
3. Liprotheine: Li entsoe ka liketane tse telele tsa li-amino acid tse nang le liathomo tsa khabone. Liprotheine li etsa mesebetsi e fapaneng 'meleng, ho kenyeletsoa ho sebetsa e le li-enzyme, bajari ba matšoao le likarolo tsa sebopeho.
4. Li-Nucleic Acids: Limolek'hule tse bolokang tlhahisoleseling ea liphatsa tsa lefutso, joalo ka DNA le RNA. Sebopeho sa tsona se itšetlehile haholo ka liathomo tsa khabone tse metheong ea naetrojene, tsoekere ea pentose le litlamo tsa phosphodiester.
Mahlale le Liindasteri tse Thehiloeng Khaboneng
Litšobotsi tse ikhethang tsa khabone ha li bohlokoa feela baelojing le k'hemistri, empa hape le lits'ebetsong tse fapaneng tsa theknoloji le tsa indasteri. Tšebeliso ea thepa e thehiloeng khaboneng, joalo ka faeba ea khabone, e bapala karolo ea bohlokoa indastering ea lifofane le ea likoloi ka lebaka la matla le bobebe ba tsona. Li-nanotube tsa khabone, tse nang le sebopeho sa tsona sa cylindrical se tšoanang le sa graphene, li fana ka thepa e ikhethang ea motlakase, ea mechini le ea mocheso, e bulang litsela tse ncha tsa boenjiniere ho nanoelectronics le thepa e kopaneng.
Graphene
Graphene, e leng letlapa la khabone la athomo e le 'ngoe le hlophisitsoeng ka har'a letlooeng la mahlakore a tšeletseng, e bakile phetoho e kholo saenseng ea thepa. Ka tsamaiso ea eona e ikhethang ea motlakase, ho tenyetseha le matla a ikhethang a mechini, graphene e sebelisoa lits'ebetsong tse fapaneng, ho tloha ho lisebelisoa tsa elektroniki tse tenyetsehang ho isa ho libeteri tse sebetsang hantle le tse tjhajang ka potlako.
Khabone e Butsoeng
Khabone e sebetsang, e leng mofuta o nang le masoba a mangata a khabone, e sebelisoa lits'ebetsong tse ngata tsa ho sefa le ho hloekisa, ho kenyeletsoa le ho sefa metsi le moea. Bokhoni ba khabone e sebetsang ba ho monya mefuta e mengata ea litšila bo etsa hore e be karolo ea bohlokoa indastering ea bongaka le ea tikoloho.
Qetello
Khabone ke ntho e ikhethang e nang le thepa e ikhethang e nolofalletsang ho thehoa ha mefuta e mengata ea metsoako le meaho e nang le mesebetsi e mengata e mengata. Ho tloha sebopehong sa eona sa athomo, se lumellang litlamo tse tsitsitseng tsa covalent, ho ea ho mefuta e mengata ea allotropic e amanang le thepa e fapaneng ea 'mele, ho ea ho karolo ea eona ea bohlokoa k'hemistring ea lintho tse phelang le bophelong, athomo ea khabone ke motheo oa boholo ba seo re se tsebang ka k'hemistri le baeloji. Mahlale a ntseng a fetoha a ntse a tsoela pele ho fumana lits'ebetso tse ncha bakeng sa thepa ea khabone, ho netefatsa hore ho ikhetha ha athomo ea khabone ho tsoela pele ho bapala karolo ea bohlokoa tsoelo-peleng ea saense le theknoloji.
