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What is quantum mechanicalmodelof atomgive its important features. |
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Answer» Solution :Quantum MechanicalModel of ATOM : Thismodelof atom is the pictureof thestructureofthe atomwhichemerges from the applicationof theschrodingerequationto ATOMS (i) the energyof electronin atomsisquantizedforexamplewhen electronsare boundto thenucleusin atoms (ii) theexistenceof quantizedelectronicenergylevelsis adirectresult ofthe wavelikepropertiesof electronsand are allowedsolutions ofSchrodinger wave equation. (iii) boththeexactpositionandexactvelocityofdeterminesimultaneously(Heisenberguncertaintyprinciple ) .THEPATH of anelectronin an atom thereforecannever bedeterminedor knonwn accurately (iv)An atomicorbitalis thewavefunction w foran ELECTRON in an atom (v ) Theprobabilityof findingan electron at apointwithinan atonis proportional to thesquareof theorbitalwavefunctioni.e.,wdensityandisalwayspositive From the valueof `w^(2)` at differentpointwithinan atom it ispossiblepredict the regionaroundthe nucleuswhereelectronwill mostprobablybe found. |
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