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信息檢索與文獻(xiàn)閱讀(化學(xué)0701-0702)2009年10月10日信息檢索與文獻(xiàn)閱讀2009年10月10日第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀(20學(xué)時)第二部分英文閱讀材料(12學(xué)時)第三部分信息檢索(16學(xué)時)第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀第一章作為定量科學(xué)和物質(zhì)科學(xué)的化學(xué)第二章原子、分子和離子第三章氣態(tài)第四章熱化學(xué)第五章有機(jī)化合物和基團(tuán)的命名第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分析化學(xué)化學(xué)術(shù)語
第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀(20學(xué)時)第一章作為定量科學(xué)和物質(zhì)科學(xué)的化學(xué)第一部分化學(xué)專業(yè)第二部分英文閱讀材料(12學(xué)時)
第一章松香酸度的標(biāo)準(zhǔn)測試方法
第二章Ⅲ-Ⅴ族半導(dǎo)體制備的新方法:InP納米晶的超聲化學(xué)合成
第三章分子離子材料的計算機(jī)模擬
第四章透射Laue法的X射線衍射
第五章銷售合同
第六章專利說明書
第二部分英文閱讀材料(12學(xué)時)
第一章松香酸度第三部分信息檢索(16學(xué)時)
第一章信息檢索基礎(chǔ)
第二章超星圖書館
第三章中國期刊網(wǎng)
第四章維普
第五章工程索引(Ei)
第六章美國化學(xué)文摘(CA)
第七章專利
第三部分信息檢索(16學(xué)時)
第一章信息檢索基礎(chǔ)教材和參考書:
1、魏高原,
化學(xué)專業(yè)基礎(chǔ)英語知識(I)(IntroductoryChemistrySpecialityEnglish),
北京大學(xué)出版社,2004。
2、
ReadingMaterials(自編講義)。3、
陳英,科技信息檢索(第二版),科學(xué)出版社,2005。4、
萬錫仁,InformationRetrievalandRelatedReadingMaterials,(待出版)。5、
[美]PhilipBall著,魏高原等注釋,
化學(xué)專業(yè)基礎(chǔ)英語(II),
北京大學(xué)出版社,2001。
教材和參考書:課堂教學(xué)內(nèi)容安排第一節(jié)課教學(xué)要求說明詞匯預(yù)習(xí)課文閱讀理解第二節(jié)課課文閱讀理解(續(xù))答疑布置課后作業(yè)課堂書面練習(xí)課堂教學(xué)內(nèi)容安排第一節(jié)課第二節(jié)課Chapter6Inorganicchemical,organicchemical,physicalchemical,analyticalchemical,andbiochemicalterms
第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分析化學(xué)和生物化學(xué)化學(xué)術(shù)語
1、無機(jī)化學(xué)術(shù)語(I)Chapter6第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分一、教學(xué)要求掌握:常用的無機(jī)化學(xué)的化學(xué)術(shù)語和概念;化學(xué)專業(yè)文獻(xiàn)的閱讀和理解。熟悉:無機(jī)化學(xué)(中文)
了解:不常用的元素的英文名稱
。一、教學(xué)要求二、詞匯(NewWordsandExpressions)periodictable元素周期表electronicstructure電子結(jié)構(gòu)periodicity周期性classical經(jīng)典的wavelength波長frequency頻率wavenumber波數(shù)diffraction衍射二、詞匯(NewWordsandExpressionobstacle障礙物quantum量子quantized量子化quantumtheory量子理論photoelectriceffect光電效應(yīng)photon光子whole-numbermultiple整數(shù)倍Einstein愛因斯坦obstacle障礙物shineon照到...上device器件automaticdooropener自動開門器radiantenergy輻射能量quantummechanics量子力學(xué)Heisenberguncertaintyprinciple海森堡測不準(zhǔn)原理momentum動量shineon照到...上simultaneously同時地
directional方向的maintain保持angularmomentum角動量groundstate基態(tài)excitedstate激發(fā)態(tài)quantumnumber量子數(shù)radius(radii)半徑simultaneously同時地lowestenergyorbital最低能量軌道m(xù)ultiplier乘數(shù)atomicorbital原子軌道thefourquantumnumber四個量子數(shù)specificenergy特定能量
Schr?dinger
equation薛定諤方程spinquantumnumber自旋量子數(shù)principalquantumnumber主量子數(shù)lowestenergyorbital最低能量軌道angularmomentumquantumnumber
角量子數(shù)magneticquantumnumber磁量子數(shù)pindown使…約束electronconfiguration電子組態(tài)Pauliexclusionprinciple不相容原理
Hund'sprinciple洪特規(guī)則subshell亞層angularmomentumquantumnumbeparamagnetism順磁性diamagnetism反磁性magneticfield磁場unpairedelectron未成對電子group族period周期noblegas惰性氣體paramagnetism順磁性representativeelement主族元素
transitionelement
過渡元素alkalimetal堿金屬alkalineearthmetal堿土金屬transuranium超鈾的metal金屬nonmetal非金屬semiconductingelement半導(dǎo)體元素representativeelement主族元素三、課文的閱讀理解
學(xué)生閱讀課文5~10分鐘,教師指定學(xué)生逐段朗讀課文,并翻譯成中文,教師及時評講。三、課文的閱讀理解學(xué)生閱讀課文5~10分鐘,教periodictable,electronicstructure(元素周期表,電子結(jié)構(gòu))
Theperiodictablegroupstheelementsinorderofincreasingatomicnumberinsuchawaythatelementswithsimilarpropertiesfallneareachother.Astheatomicnumberincreases,thenumberofelectronsineachatomalsoincreases.periodictable,electronicstr
Afullappreciation正確評價ofelectronicstructure--howtheelectronsarearrangedinatoms--isessential必要的forunderstandingthesimilaritiesandperiodicitiesoftheelements.Understandingelectronicstructure,inturn,requiresabriefexcursionintoclassicalandmodernphysics.(Theword"classical"isgenerallyusedforanythingthatwasestablishedandimportantinthepast.)
Afullappreciation正確評價ofel
2.wavelength,frequency,wavenumber,diffraction
(波長、頻率、波數(shù)和衍射)
Wavelength(,Greeklambda)isthedistancebetweenanytwosimilarpointsonadjacentwaves.Thefrequency(,Greeknu)oflightisthenumberofcompletewaves,alsoknownasthenumberofcycles,passingagivenpointinaunitoftime.
(Noticethatthespeedoflightisequaltotheproductand,i.e.,c=.)2.wavelength,frequency,wThewavenumberisthenumberofwavelengthsperunitoflengthcovered,i.e.=1/.Diffractionisthespreadingofwavesastheypassobstaclesoropenings,小孔comparableinsizetotheirwavelength.Thewavenumberisthenumber
3.quantum,quantized,quantumtheory,photoelectriceffect,photon(量子、量子化、量子理論、光電效應(yīng)和光子)
Lightcanberegardedasmadeupofparticleseachofwhichcarriesadefiniteamountofenergy,referredtoasaquantum.Something(物理量)thatisquantized使量子化isrestrictedtoamountsthatarewhole-numbermultiplesofthebasicunit,orquantum,fortheparticularsystem.
3.quantum,quantized,Quantumtheoryisageneraltermfortheidea
thatenergyisquantizedandtheconsequencesofthatidea.Quantumtheoryisagen
Byassumingthatlightisquantized,Einsteinwasabletoexplainthephotoelectriceffect,inwhichelectronsarereleasedbycertainmetals(particularlyCsandtheotheralkalimetals,Li,Na,K,andRb(Rubidium))whenlightshines照耀on照到...上them.(Thephotoelectriceffectisusedinpracticaldevicessuchasautomaticdooropeners(開門器).)Aquantumofradiantenergyiscalledaphoton.Byassumingtha
4.quantummechanics,Heisenberguncertaintyprinciple,momentum(量子力學(xué),海森堡測不準(zhǔn)原理,動量)
"Mechanics"isthestudyofmotion,andquantummechanics(is)thatreferstothestudyofthemotionofentities實(shí)體
thataresmallenoughandmovefastenoughtohavebothobservablewavelikeandparticlelikeproperties.
4.quantummechanics,HeisenbeWhatiscalledtheHeisenberguncertaintyprinciplemaybestatedasfollows:Itisimpossibletoknowsimultaneouslyboththeexactmomentumandtheexactpositionofanelectron.WhatiscalledtheHeisenbe(Momentumismasstimesvelocity.Itexpressesnotonlythetendencyofamovingbodytokeepmoving,butalso,sincevelocityisadirectionalquantity,tomaintainthedirectionofitsmotion.)(Momentumismasstimesveloci5.angularmomentum,groundstate,excitedstates,quantumnumber角動量、基態(tài)、激發(fā)態(tài)和量子數(shù)
5.angularmomentum,groundst
Angularmomentum,whichisgivenbymasstimesvelocitytimestheradiusofabody'smotion,isameasureofthetendencyofabodytokeepmovingonacurvedpath.Thelowestenergyorbital,theoneinwhichthesingleelectroninahydrogenatomnormallyresides,isthegroundstateforthatelectron.Angularmomentum,whichis
Thestatesofenergyhigherthanthegroundstateareexcitedstates,reachedbytheelectronwhentheatomhasabsorbedextraenergy.Aquantumnumberisawhole-numbermultiplierthatspecifiesanamountofenergy.Thestatesofenergyhighe
6.atomicorbital,thefourquantumnumbers(原子的軌道和四個量子數(shù))Theregioninwhichanelectronwithaspecificenergywillmostprobablybelocatediscalledanatomicorbital.Thedesignationoftheorbital"location"ofanelectronrequiresfourquantumnumbers.Independentofanyexperiencedevidence,threeofthemarisefromsolutionsofthe
Schrodingerequation.6.atomicorbital,the
Afourthquantumnumber,thespinquantumnumberms(=-1/2,+1/2),isneededtocompletethedesignationofeachindividualelectronwithinanatom(becausetheelectroncanoccupytheorbitalintwodifferentorientations).Thefirstquantumnumber,theprincipalquantumnumbern,identifies確定themainenergylevels(likethebalconies).AfourthquantumnumbThesecond,thesubshell亞層quantumnumberl(=0,1,2,...n-1)(traditionallycalledeithertheangularmomentumorazimuthal方位角的quantumnumber)identifiessublevelsofenergy亞能級withinthemainenergylevel(liketherowsineachbalcony).Thesecond,thesubshell亞層quan
Thethirdquantumnumberistheorbitalquantumnumberml(=-l,...,0,...+l)(traditionallycalledthemagneticquantumnumber)--itpinsdown(使…約束)
thelocationofindividualelectronsinorbitals(liketheseatsineachrow).Thethirdquantumnumbe7.electronconfiguration,Pauliexclusionpriciple,Hund'sprinciple(電子組態(tài),Pauli不相容原理,Hund's規(guī)則)
Theelectronicconfigurationofanatomisthedistributionamongthesubshellsofalloftheelectronsintheatom.Pauliexclusionprinciple:Notwoelectronscanhavethesame(four)quantumnumbers.Hund'sprinciple:
Orbitalsofequalenergyareeachoccupiedbyasingleelectronbeforeanyofthemacquiresasecondelectron.7.electronconfiguration,Pau
8.paramagnetism,diamagnetism(順磁性,反磁性)
Paramagnetism順磁性isthepropertyofattractiontoamagneticfieldshownbysubstancescontainingunpairedelectrons.Diamagnetism反磁性isthepropertyofrepulsionbyamagneticfieldandshowstheabsenceofunpairedelectrons.8.paramagnetism,diamagnet
9.group(family),period,noblegas(族(家族的),周期,惰性氣體)
Theelementsinasingleverticalcolumnintheperiodictablearereferredtoasmembersofagrouporfamily.Ahorizontalrowintheperiodictableiscalledaperiod.Eachperiodendswithanoblegas--anelementinwhichallenergysublevels(亞層)thatareoccupiedarecompletelyfilled.9.group(family),period,10.representativeelements,transitionelements(主族元素和過渡元素)Theelementsinwhichthesandpsublevelsarefillingarecalledtherepresentativeelements,whichincludealkalimetals(GroupI),alkalineearthmetals(GroupⅡ),chalcogens(GroupVI)andhalogens(GroupVII).Thetransitionelementsincludeallelementsinwhichthedorfsublevelsarefilling.
10.representativeelements,t
Thesearereferredtoasthed-transitionelementsandthef-transitionelements.(Thelanthanidesandtheactinidesaref-transitionelements.)Sometimesthef-transitionelementsarecalledtheinnertransitionelements.Scandium,yttrium,andallofthesixth-periodelementsfromlanthanumtolutetiumarealsoknownastherareearthelements.Followinguranium(Z=92)comethetransuraniumelements.Thesearereferredtoas11.metals,nonmetals,semiconductingelements(
金屬、非金屬、半導(dǎo)體元素)
Bothinpositionintheperiodictableandinproperties,thesemiconductingelementsfallbetweenthemetalsandthenonmetals.11.metals,nonmetals,semicon12.chemicalbond,valenceelectrons,Lewissymbol
Inwritingadefinitionofthechemicalbondwemustdistinguishchemicalbondingfromother,weakerandlesslong-lastingforces.12.chemicalbond,valenceele
Wechoosetodefinethechemicalbondasaforcethatactsstronglyenoughbetweentwoatomsorgroupsofatomstoholdthemtogetherinadifferentspecies
thathasmeasurableproperties.Valenceelectronsaretheelectronsthatareavailabletotakepartinchemicalbonding.Wechoosetodefinethe
(Thenumberofvalenceelectronsinanatomofarepresentativeelementequalstothegroupnumberofthatelement.)InaLewissymboltheouterelectronsareindicatedbydots(orcircles,orx‘s,etc.)arrangedaroundtheatomicsymbol.Thepairingoftwoelectrons(成對電子)inthesameorbitalisrepresentedbytwodotsonthesamesideofthesymbol.(Thenumberofvalenceele13.chemicalstability,octetrule,chemicalreactivity(化學(xué)穩(wěn)定性,八電子規(guī)則,化學(xué)反應(yīng)性)
Thenoble惰性的gasesfallattheendofeachperiodintheperiodictableandasagroup(they)aretheleastreactiveofalltheelements.Thisresistancetochemicalchange,orchemicalstability,iscreditedto,把...歸給thecompletelyfilledoutersandpsubshellsofthenoblegases.13.chemicalstability,octetAccordingtotheoctetrule,atomstendtocombinebygain,loss,orsharingofelectronsothattheouterenergylevelofeachatomholds(擁有)orsharesfourpairsofelectrons.Sodiumisasilverymetalthathashighchemicalreactivity,thatis,atendencytoundergochemicalreactions.Accordingtotheoctetrule,a14.metallicbonding,ionicbonding(金屬鍵、離子鍵)
Metallicbondingistheattractionbetweenpositivemetalionsandsurrounding,freelymobileelectrons.Ionicbondingistheattractionbetweenpositiveandnegativeions.14.metallicbonding,ionicbo四、答疑
一般情況下,爭對學(xué)生提出的問題進(jìn)行個別答疑。四、答疑一般情況下,爭對學(xué)生提出的問題進(jìn)行1.TranslatethetechnicaltermsinthetextintoChinesebyreferringtorelevantdictionaries.2.TranslatethistextintoChinese.
五、課后作業(yè)1.Translatethetechnicalterm
復(fù)習(xí)內(nèi)容:1、復(fù)習(xí)和整理本課文的專業(yè)詞匯;2、本課文的全文翻譯。預(yù)習(xí)內(nèi)容:第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分析化學(xué)和生物化學(xué)化學(xué)術(shù)語
1、無機(jī)化學(xué)術(shù)語(II)復(fù)習(xí)內(nèi)容:預(yù)習(xí)內(nèi)容:六、課堂練習(xí)六、課堂練習(xí)06無機(jī)化學(xué)術(shù)語(I)課件Theacitivityofacatalystisproperlyexpressedastherateperunitarea(usuallyperm2)ofactivesurface,andcomparisonsbetweendifferentcatalystshavetobemadeonthisbasis.
Evenwhentheinertmaterialispresent,measurementofthetotalsurfaceareaisamatterofgreatimportance.Itisnormallydesirableforthecatalysttohaveahighsurfacearea,butthereisalimittowhatcanbeachievedmerelybymakingtheparticlesizeverysmall.Theacitivityofacatalystis07Valuesofmolarmasscalculatedusingtheidealgaslawaregoodonlytotheextentthatthegasbehavesasanidealgas.However,allrealgasesapproachidealgasbehavioratverylowpressures,soacommontechniqueforobtainingveryaccuratemolarmassesistomeasurethedensityofagasatvariouslowpressures,將下題翻譯成中文,并思考有關(guān)問題:07Valuesofmolarmasscalculcalculated/pfromthedata,plotd/pagainstp,extrapolatethecurvetop=0tofindtheintercept,andcalculatethemolarmass,M,usingM--(intercept)RTwhereR=0.0820568L.atm/(K.mol).FindthemolarmassforSO2fromthefollowingdataat0℃:pinatm0.10.0110.0010.0001(d/p)ing/(L.atm)2.8649742.8588002.8581832.858121
Assumethatthetemperatureandpressurevaluesareexact.calculated/pfromthedata,pThankYou!ThankYou!信息檢索與文獻(xiàn)閱讀(化學(xué)0701-0702)2009年10月10日信息檢索與文獻(xiàn)閱讀2009年10月10日第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀(20學(xué)時)第二部分英文閱讀材料(12學(xué)時)第三部分信息檢索(16學(xué)時)第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀第一章作為定量科學(xué)和物質(zhì)科學(xué)的化學(xué)第二章原子、分子和離子第三章氣態(tài)第四章熱化學(xué)第五章有機(jī)化合物和基團(tuán)的命名第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分析化學(xué)化學(xué)術(shù)語
第一部分化學(xué)專業(yè)基礎(chǔ)英語閱讀(20學(xué)時)第一章作為定量科學(xué)和物質(zhì)科學(xué)的化學(xué)第一部分化學(xué)專業(yè)第二部分英文閱讀材料(12學(xué)時)
第一章松香酸度的標(biāo)準(zhǔn)測試方法
第二章Ⅲ-Ⅴ族半導(dǎo)體制備的新方法:InP納米晶的超聲化學(xué)合成
第三章分子離子材料的計算機(jī)模擬
第四章透射Laue法的X射線衍射
第五章銷售合同
第六章專利說明書
第二部分英文閱讀材料(12學(xué)時)
第一章松香酸度第三部分信息檢索(16學(xué)時)
第一章信息檢索基礎(chǔ)
第二章超星圖書館
第三章中國期刊網(wǎng)
第四章維普
第五章工程索引(Ei)
第六章美國化學(xué)文摘(CA)
第七章專利
第三部分信息檢索(16學(xué)時)
第一章信息檢索基礎(chǔ)教材和參考書:
1、魏高原,
化學(xué)專業(yè)基礎(chǔ)英語知識(I)(IntroductoryChemistrySpecialityEnglish),
北京大學(xué)出版社,2004。
2、
ReadingMaterials(自編講義)。3、
陳英,科技信息檢索(第二版),科學(xué)出版社,2005。4、
萬錫仁,InformationRetrievalandRelatedReadingMaterials,(待出版)。5、
[美]PhilipBall著,魏高原等注釋,
化學(xué)專業(yè)基礎(chǔ)英語(II),
北京大學(xué)出版社,2001。
教材和參考書:課堂教學(xué)內(nèi)容安排第一節(jié)課教學(xué)要求說明詞匯預(yù)習(xí)課文閱讀理解第二節(jié)課課文閱讀理解(續(xù))答疑布置課后作業(yè)課堂書面練習(xí)課堂教學(xué)內(nèi)容安排第一節(jié)課第二節(jié)課Chapter6Inorganicchemical,organicchemical,physicalchemical,analyticalchemical,andbiochemicalterms
第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分析化學(xué)和生物化學(xué)化學(xué)術(shù)語
1、無機(jī)化學(xué)術(shù)語(I)Chapter6第六章無機(jī)化學(xué)、有機(jī)化學(xué)、物理化學(xué)、分一、教學(xué)要求掌握:常用的無機(jī)化學(xué)的化學(xué)術(shù)語和概念;化學(xué)專業(yè)文獻(xiàn)的閱讀和理解。熟悉:無機(jī)化學(xué)(中文)
了解:不常用的元素的英文名稱
。一、教學(xué)要求二、詞匯(NewWordsandExpressions)periodictable元素周期表electronicstructure電子結(jié)構(gòu)periodicity周期性classical經(jīng)典的wavelength波長frequency頻率wavenumber波數(shù)diffraction衍射二、詞匯(NewWordsandExpressionobstacle障礙物quantum量子quantized量子化quantumtheory量子理論photoelectriceffect光電效應(yīng)photon光子whole-numbermultiple整數(shù)倍Einstein愛因斯坦obstacle障礙物shineon照到...上device器件automaticdooropener自動開門器radiantenergy輻射能量quantummechanics量子力學(xué)Heisenberguncertaintyprinciple海森堡測不準(zhǔn)原理momentum動量shineon照到...上simultaneously同時地
directional方向的maintain保持angularmomentum角動量groundstate基態(tài)excitedstate激發(fā)態(tài)quantumnumber量子數(shù)radius(radii)半徑simultaneously同時地lowestenergyorbital最低能量軌道m(xù)ultiplier乘數(shù)atomicorbital原子軌道thefourquantumnumber四個量子數(shù)specificenergy特定能量
Schr?dinger
equation薛定諤方程spinquantumnumber自旋量子數(shù)principalquantumnumber主量子數(shù)lowestenergyorbital最低能量軌道angularmomentumquantumnumber
角量子數(shù)magneticquantumnumber磁量子數(shù)pindown使…約束electronconfiguration電子組態(tài)Pauliexclusionprinciple不相容原理
Hund'sprinciple洪特規(guī)則subshell亞層angularmomentumquantumnumbeparamagnetism順磁性diamagnetism反磁性magneticfield磁場unpairedelectron未成對電子group族period周期noblegas惰性氣體paramagnetism順磁性representativeelement主族元素
transitionelement
過渡元素alkalimetal堿金屬alkalineearthmetal堿土金屬transuranium超鈾的metal金屬nonmetal非金屬semiconductingelement半導(dǎo)體元素representativeelement主族元素三、課文的閱讀理解
學(xué)生閱讀課文5~10分鐘,教師指定學(xué)生逐段朗讀課文,并翻譯成中文,教師及時評講。三、課文的閱讀理解學(xué)生閱讀課文5~10分鐘,教periodictable,electronicstructure(元素周期表,電子結(jié)構(gòu))
Theperiodictablegroupstheelementsinorderofincreasingatomicnumberinsuchawaythatelementswithsimilarpropertiesfallneareachother.Astheatomicnumberincreases,thenumberofelectronsineachatomalsoincreases.periodictable,electronicstr
Afullappreciation正確評價ofelectronicstructure--howtheelectronsarearrangedinatoms--isessential必要的forunderstandingthesimilaritiesandperiodicitiesoftheelements.Understandingelectronicstructure,inturn,requiresabriefexcursionintoclassicalandmodernphysics.(Theword"classical"isgenerallyusedforanythingthatwasestablishedandimportantinthepast.)
Afullappreciation正確評價ofel
2.wavelength,frequency,wavenumber,diffraction
(波長、頻率、波數(shù)和衍射)
Wavelength(,Greeklambda)isthedistancebetweenanytwosimilarpointsonadjacentwaves.Thefrequency(,Greeknu)oflightisthenumberofcompletewaves,alsoknownasthenumberofcycles,passingagivenpointinaunitoftime.
(Noticethatthespeedoflightisequaltotheproductand,i.e.,c=.)2.wavelength,frequency,wThewavenumberisthenumberofwavelengthsperunitoflengthcovered,i.e.=1/.Diffractionisthespreadingofwavesastheypassobstaclesoropenings,小孔comparableinsizetotheirwavelength.Thewavenumberisthenumber
3.quantum,quantized,quantumtheory,photoelectriceffect,photon(量子、量子化、量子理論、光電效應(yīng)和光子)
Lightcanberegardedasmadeupofparticleseachofwhichcarriesadefiniteamountofenergy,referredtoasaquantum.Something(物理量)thatisquantized使量子化isrestrictedtoamountsthatarewhole-numbermultiplesofthebasicunit,orquantum,fortheparticularsystem.
3.quantum,quantized,Quantumtheoryisageneraltermfortheidea
thatenergyisquantizedandtheconsequencesofthatidea.Quantumtheoryisagen
Byassumingthatlightisquantized,Einsteinwasabletoexplainthephotoelectriceffect,inwhichelectronsarereleasedbycertainmetals(particularlyCsandtheotheralkalimetals,Li,Na,K,andRb(Rubidium))whenlightshines照耀on照到...上them.(Thephotoelectriceffectisusedinpracticaldevicessuchasautomaticdooropeners(開門器).)Aquantumofradiantenergyiscalledaphoton.Byassumingtha
4.quantummechanics,Heisenberguncertaintyprinciple,momentum(量子力學(xué),海森堡測不準(zhǔn)原理,動量)
"Mechanics"isthestudyofmotion,andquantummechanics(is)thatreferstothestudyofthemotionofentities實(shí)體
thataresmallenoughandmovefastenoughtohavebothobservablewavelikeandparticlelikeproperties.
4.quantummechanics,HeisenbeWhatiscalledtheHeisenberguncertaintyprinciplemaybestatedasfollows:Itisimpossibletoknowsimultaneouslyboththeexactmomentumandtheexactpositionofanelectron.WhatiscalledtheHeisenbe(Momentumismasstimesvelocity.Itexpressesnotonlythetendencyofamovingbodytokeepmoving,butalso,sincevelocityisadirectionalquantity,tomaintainthedirectionofitsmotion.)(Momentumismasstimesveloci5.angularmomentum,groundstate,excitedstates,quantumnumber角動量、基態(tài)、激發(fā)態(tài)和量子數(shù)
5.angularmomentum,groundst
Angularmomentum,whichisgivenbymasstimesvelocitytimestheradiusofabody'smotion,isameasureofthetendencyofabodytokeepmovingonacurvedpath.Thelowestenergyorbital,theoneinwhichthesingleelectroninahydrogenatomnormallyresides,isthegroundstateforthatelectron.Angularmomentum,whichis
Thestatesofenergyhigherthanthegroundstateareexcitedstates,reachedbytheelectronwhentheatomhasabsorbedextraenergy.Aquantumnumberisawhole-numbermultiplierthatspecifiesanamountofenergy.Thestatesofenergyhighe
6.atomicorbital,thefourquantumnumbers(原子的軌道和四個量子數(shù))Theregioninwhichanelectronwithaspecificenergywillmostprobablybelocatediscalledanatomicorbital.Thedesignationoftheorbital"location"ofanelectronrequiresfourquantumnumbers.Independentofanyexperiencedevidence,threeofthemarisefromsolutionsofthe
Schrodingerequation.6.atomicorbital,the
Afourthquantumnumber,thespinquantumnumberms(=-1/2,+1/2),isneededtocompletethedesignationofeachindividualelectronwithinanatom(becausetheelectroncanoccupytheorbitalintwodifferentorientations).Thefirstquantumnumber,theprincipalquantumnumbern,identifies確定themainenergylevels(likethebalconies).AfourthquantumnumbThesecond,thesubshell亞層quantumnumberl(=0,1,2,...n-1)(traditionallycalledeithertheangularmomentumorazimuthal方位角的quantumnumber)identifiessublevelsofenergy亞能級withinthemainenergylevel(liketherowsineachbalcony).Thesecond,thesubshell亞層quan
Thethirdquantumnumberistheorbitalquantumnumberml(=-l,...,0,...+l)(traditionallycalledthemagneticquantumnumber)--itpinsdown(使…約束)
thelocationofindividualelectronsinorbitals(liketheseatsineachrow).Thethirdquantumnumbe7.electronconfiguration,Pauliexclusionpriciple,Hund'sprinciple(電子組態(tài),Pauli不相容原理,Hund's規(guī)則)
Theelectronicconfigurationofanatomisthedistributionamongthesubshellsofalloftheelectronsintheatom.Pauliexclusionprinciple:Notwoelectronscanhavethesame(four)quantumnumbers.Hund'sprinciple:
Orbitalsofequalenergyareeachoccupiedbyasingleelectronbeforeanyofthemacquiresasecondelectron.7.electronconfiguration,Pau
8.paramagnetism,diamagnetism(順磁性,反磁性)
Paramagnetism順磁性isthepropertyofattractiontoamagneticfieldshownbysubstancescontainingunpairedelectrons.Diamagnetism反磁性isthepropertyofrepulsionbyamagneticfieldandshowstheabsenceofunpairedelectrons.8.paramagnetism,diamagnet
9.group(family),period,noblegas(族(家族的),周期,惰性氣體)
Theelementsinasingleverticalcolumnintheperiodictablearereferredtoasmembersofagrouporfamily.Ahorizontalrowintheperiodictableiscalledaperiod.Eachperiodendswithanoblegas--anelementinwhichallenergysublevels(亞層)thatareoccupiedarecompletelyfilled.9.group(family),period,10.representativeelements,transitionelements(主族元素和過渡元素)Theelementsinwhichthesandpsublevelsarefillingarecalledtherepresentativeelements,whichincludealkalimetals(GroupI),alkalineearthmetals(GroupⅡ),chalcogens(GroupVI)andhalogens(GroupVII).Thetransitionelementsincludeallelementsinwhichthedorfsublevelsarefilling.
10.representativeelements,t
Thesearereferredtoasthed-transitionelementsandthef-transitionelements.(Thelanthanidesandtheactinidesaref-transitionelements.)Sometimesthef-transitionelementsarecalledtheinnertransitionelements.Scandium,yttrium,andallofthesixth-periodelementsfromlanthanumtolutetiumarealsoknownastherareearthelements.Followinguranium(Z=92)comethetransuraniumelements.Thesearereferredtoas11.metals,nonmetals,semiconductingelements(
金屬、非金屬、半導(dǎo)體元素)
Bothinpositionintheperiodictableandinproperties,thesemiconductingelementsfallbetweenthemetalsandthenonmetals.11.metals,nonmetals,semicon12.chemicalbond,valenceelectrons,Lewissymbol
Inwritingadefinitionofthechemicalbondwemustdistinguishchemicalbondingfromother,weakerandlesslong-lastingforces.12.chemicalbond,valenceele
Wechoosetodefinethechemicalbondasaforcethatactsstronglyenoughbetweentwoatomsorgroupsofatomstoholdthemtogetherinadifferentspecies
thathasmeasurableproperties.Valenceelectronsaretheelectronsthatareavailabletotakepartinchemicalbonding.Wechoosetodefinethe
(Thenumberofvalenceelectronsinanatomofarepresentativeelementequalstothegroupnumberofthatelement.)InaLewissymboltheouterelectronsareindicatedbydots(orcircles,orx‘s,etc.)arrangedaroundtheatomicsymbol.Thepairingoftwoelectrons(成對電子)inthesameorbita
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