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In: Computer Science

Explain how developments made in the understanding of the atomic model changed from Bohr till Quantum model


Starting from discovery of electron, then gold foil experiment, Bohr model and then de Broglie and Heisenberg principle have played a vital role in the development of Quantum model of atomic structure. Explain how developments made in the understanding of the atomic model changed from Bohr till Quantum model? 

Solutions

Expert Solution

Differentitypesiofiatomicimodels

o JohniDalton’siatomicimodel

o Plumipuddingimodel

o Rutherford’simodeliofiatom

o Bohr’simodeliofitheiatom

o Quantumimechanicsimodeliofiatom

Manyiscientistsihelpediinitheidevelopmentsiofitheiatomicimodel.iTheyiexplanineditheistructureiofitheiatomiinitheiriowniview.

Dalton’siatomicitheoryiisitheifirstiatomicimodeliproposedibyitheijohnidattoni.idatlton’siatomicitheoryiproposedithatiallimatteriwasicomposediofiatomsi,iindivisible,iandiindestructibleibuildingiblocksi.iwhileialliatomsiofianielementiwereiidentical,idifferentielementsihadiatomsiofidifferentisizeiandimass.

NextiJJ.iThomsoniproposeditheiplumipuddingimodeliofitheiatom.iTheiplumipuddingimodelihasielectrons

Surroundedibyiaivolumeiofipositiveichargei,ilikeinegativelyichargediplumsiembeddediiniaipositivelyichargedi‘pudding’

AccordingitoitheiRutherfordiatomicimodelitheipositivelyichargediparticlesiandimostiofitheimassiofianiatomiwasiconcentratediinianiextremelyismallivolume.iHeicalledithisiregioniofitheiatomiasiainucleus.

Rutherfordimodeliproposedithatitheinegativelyichargedielectronsisurrounditheinucleusiofianiatom.

NielsiBhoriproposeditheiBohrimodeliofitheiatomiini1915.iTheiBhorimodeliisiaiplanetaryimodeliiniwhichitheinegativelyichargedielectronsiorbitiaismall,ipositivelyichargedinucleusisimilaritoitheiplantsiorbitingitheisun.itheiquantumimechanicalimodeliisibasedioniquantumitheory,iwhichisaysimatterialsoihasipropertiesiassociatediwithiwaves.iAccordingitoiquantumitheory,iitsiimpossibleitoiknowitheiexactipositioniandimomentumiofianielectroniatitheisameitime.

NeiliBohriproposedithatielectronsiareiarrangediiniconcentricicirculariorbitsiarounditheinucleus.iThisimodeliisipatternedionitheisolarisystemiandiisiknowniasitheiplanetaryimodel.iHisifindingsiwere

  1. Electronsiareismalliandinegativelyicharged
  2. Protonsiareiinitheinucleusiwithiisismallicompareditoitheisizeiofitheiatom
  3. Foriaiparticularielement,ionlyicertainifrequenciesi(colors)iofilightiareiabsorbedioriemitted.

atomicimodeliknowniasitheiquantumimechanicalimodeliwasitheidevelopedibyiSchrodingeri.iUnlikeitheiBohrimodel,itheiquantumimechanicalimodelidoesinotidefineitheiexactipathiofianielectron,ibutirather,ipredictsitheioddsiofitheilocationiofitheielectron.iThisimodelicanibeiportrayediasiainucleusisurroundedibyianielectronicloud.iWhereitheicloudiisimostidense,itheiprobabilityiofifindingitheielectroniisigreatest,iandiconversely,itheielectroniisilessilikelyitoibeiiniailessidenseiareaiofitheicloud.iThus,ithisimodeliintroduceditheiconceptiofisub-energyilevels.

venereology answered 1 year ago
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